CN107487436B

CN107487436B - Fluidic system comprising a co-flow jet

Info

Publication number: CN107487436B
Application number: CN201710313854.9A
Authority: CN
Inventors: 查戈成
Original assignee: Coflow Jet LLC
Current assignee: Coflow Jet LLC
Priority date: 2016-06-10
Filing date: 2017-05-05
Publication date: 2020-08-21
Anticipated expiration: 2037-05-05
Also published as: CN107487437A; CN107487437B; CN107487436A

Abstract

Fluid systems are described herein. An example embodiment of a fluid system has a longitudinal axis, a chord length, a first body portion, a second body portion, a spacer, and a fluid pressurizer. The first body portion and the second body portion cooperatively define an ejection opening, an intake opening, and a passage extending from the ejection opening to the intake opening. A fluid pressurizer is disposed within a channel cooperatively defined by the first body portion and the second body portion. The first body portion defines a cavity sized and configured to filter inclusions entering the channel during use and to provide a mechanism for removing inclusions from the system.

Description

Fluidic system comprising a co-flow jet

RELATED APPLICATIONS

This application claims the benefit of U.S. provisional application No.62/348,344 filed at 10/6/2016. The entire disclosure of this related application is hereby incorporated by reference into the present disclosure.

Technical Field

The present disclosure relates generally to the field of fluid systems. More particularly, the present disclosure relates to fluidic systems including co-flow (co-current ) jets.

Background

Transportation vehicles such as aircraft traditionally use propellers or jet engine propulsion systems to generate thrust and wings to generate lift to support the weight of the aircraft. Typically, the propulsion and lift generation systems have been treated as separate systems. Some airfoil systems have been developed that combine these systems by utilizing ducts communicating with outlet and inlet openings defined on the wing of the aircraft. However, these systems do not address the possibility of inclusions (debris) entering the pipeline and degrading the efficiency and effectiveness of the system. Additionally, these systems do not provide an alternative for varying the fluid flow through the pipeline to achieve greater propulsion and/or lift.

Accordingly, there is a need for new and useful fluid systems.

Disclosure of Invention

Various fluid systems are described herein.

An example fluid system includes a first body portion, a second body portion, a spacer, a fluid pressurizer, a first plate (panel), a first actuator, a second plate, and a second actuator. The first body portion has a leading edge, a trailing edge, a first intermediate edge, a second intermediate edge, a front surface, a rear surface, a bottom surface, and a main body defining a recess, an inner surface, a recess base, a first opening, a second opening, a third opening, and a cavity. The first intermediate edge is disposed between the leading edge and the second intermediate edge. The second intermediate edge is disposed between the first intermediate edge and the trailing edge. The front surface extends from the front edge to a first intermediate edge. The rear surface extends from the rear edge to a second intermediate edge. The bottom surface extends from the leading edge to the trailing edge. The recess extends from the first opening into the main body of the first body portion up to a recess base and forms an inner surface. The first opening extends from the first intermediate edge to the second intermediate edge. A second opening is defined on the inner surface and provides access to the cavity. A third opening is defined in the bottom surface and provides access to the cavity. The second body portion is disposed within a recess defined by the main body of the first body portion. The first body portion and the second body portion cooperatively define an ejection opening, an intake opening, and a passage extending from the ejection opening to the intake opening. The passage has a first portion extending from the suction opening toward the ejection opening and a second portion extending from the ejection opening toward the suction opening. The spacer is disposed within a channel cooperatively defined by the first body portion and the second body portion. The spacer partially obstructs fluid flow through the channel. A fluid pressurizer is disposed within a passageway cooperatively defined by the first body portion and the second body portion, and has a suction port facing the first portion of the passageway and a discharge port facing the second portion of the passageway. The first plate is movably attached to the first body portion and is movable between an open configuration that enables fluid flow through the third opening and a closed configuration that prevents fluid flow through the third opening. A first actuator is operably attached to the first panel and is configured to move the first panel between an open configuration and a closed configuration. The second plate is movably attached to the first body portion and is movable between an open configuration that enables fluid flow through the second opening and a closed configuration that prevents fluid flow through the second opening. A second actuator is operably attached to the second panel and is configured to move the second panel between the open configuration and the closed configuration. The second opening provides a passageway between the channel and the cavity. The third opening provides access between the cavity and an environment external to the first body portion.

An additional understanding of the exemplary fluid system may be obtained by reading the following detailed description and accompanying drawings.

Drawings

FIG. 1 is a side view of a first example fluidic system subjected to a fluid flow field.

Fig. 2 is a partial perspective cross-sectional view of the fluid system shown in fig. 1, taken along a plane perpendicular to a longitudinal axis of the fluid system.

Fig. 3 is a partial perspective cross-sectional view of the fluid system shown in fig. 1, taken along a plane perpendicular to a longitudinal axis of the fluid system.

Fig. 4 is an enlarged view of the region I shown in fig. 2.

Fig. 5 is an enlarged view of the region II shown in fig. 2.

Fig. 6 is an enlarged view of the region III shown in fig. 2.

FIG. 7 is a side view of a conventional airfoil subjected to a fluid flow field.

FIG. 8 is a partial perspective cross-sectional view of a second example fluid system, taken along a plane perpendicular to a longitudinal axis of the fluid system. The discrete spacers are shown in a first configuration.

Fig. 9 illustrates the discrete spacer of the fluid system illustrated in fig. 8 in a second configuration.

FIG. 10 is a partial perspective cross-sectional view of a third example fluid system, taken along a plane perpendicular to a longitudinal axis of the fluid system. The spacer is shown in a first configuration.

FIG. 11 illustrates the spacer of the fluid system shown in FIG. 10 in a second configuration.

FIG. 12 is a partial perspective cross-sectional view of a fourth example fluid system, taken along a plane perpendicular to a longitudinal axis of the fluid system.

FIG. 13 is a cross-sectional view of a fifth example fluidic system subject to fluid flow fields, taken along a plane perpendicular to a longitudinal axis of the fluidic system. The first panel is shown in a closed configuration and the second panel is shown in an open configuration.

FIG. 14 is a cross-sectional view of a sixth example fluid system, taken along a plane perpendicular to a longitudinal axis of the fluid system. The fluid regulator is in a first position.

FIG. 15 is another cross-sectional view of the fluid system shown in FIG. 14 with the fluid regulator in a second position.

FIG. 16 is a side view of a first example rotatable wing system.

FIG. 17 is a partial top view of the rotatable wing system shown in FIG. 16.

FIG. 18 is a partial cross-sectional view of the rotatable wing system shown in FIG. 16, taken along a plane parallel to the longitudinal axis of the fuselage.

FIG. 19 is a partial cross-sectional view of the rotatable wing system shown in FIG. 16, taken along line 19-19.

FIG. 20 is a side view of a second example rotatable wing system.

FIG. 21 is a side view of a third example rotatable wing system.

Detailed Description

The following detailed description and the annexed drawings describe and illustrate various exemplary embodiments of the fluid system. The description and illustrations of these embodiments are provided to enable one skilled in the art to make and use the fluid systems. They are not intended to limit the scope of the claims in any way.

As used herein, the term "inclusions" refers to any material sized and configured to pass through the ejection opening or the suction opening, and may include raindrops, sand, snow, and/or any other material.

As used herein, the term "chord length" refers to the length extending from the leading edge of an element to the trailing edge of the element. The term "chord length" does not limit the structural configuration of an element and may be used to describe the length of any element.

Fig. 1, 2, 3, 4, 5, and 6 illustrate a first example fluid system 10. The fluid system 10 has a longitudinal axis 11, a first body portion 12, a chord length 13, a second body portion 14, a plurality of supports 16, a plurality of spacers 18, a first plate 20, a first actuator 22, a second plate 24, a second actuator 26, and a fluid pressurizer 28. In the illustrated embodiment, the fluid system 10 is included on an airfoil 30 of a wing 32 of an aircraft.

The first body portion 12 has a leading edge 38, a trailing edge 40, a first intermediate edge 42, a second intermediate edge 44, a front surface 46, a rear surface 48, a bottom surface 50, and a main body 52 defining a recess 54, an inner surface 56, a first opening 58, a second opening 60, a third opening 62, and a cavity 64. The chord length 13 extends along an imaginary plane from the leading edge 38 to the trailing edge 40. The leading edge 38 is a portion of the first body portion 12 (e.g., a front portion of the first body portion 12) that first interacts with the fluid as the fluid system 10 travels through the fluid in a forward direction (e.g., in the direction indicated by arrow 39). The trailing edge 40 is a portion of the first body portion 12 (e.g., a rear portion of the first body portion 12) that last interacts with the fluid as the fluid system 10 travels through the fluid in a forward direction (e.g., in the direction indicated by arrow 39).

A first intermediate edge 42 is disposed between the leading edge 38 and the trailing edge 40, and a second intermediate edge 44 is disposed between the first intermediate edge 42 and the trailing edge 40. The first intermediate edge 42 and the second intermediate edge 44 define a first opening 58. The front surface 46 extends from the leading edge 38 toward the trailing edge 40 to the first intermediate edge 42 and curves away from the chord length 13. The aft surface 48 extends from the second intermediate edge 44 away from the leading edge 38 to the trailing edge 40 and curves toward the chord length 13. The bottom surface 50 extends from the leading edge 38 to the trailing edge 40 and extends along a first portion 51 of the bottom surface 50 toward the chord length 13 and along a second portion 53 of the bottom surface 50 away from the chord length 13, as shown in fig. 2.

The recess 54 extends into the body 52 between the leading edge 38 and the trailing edge 40 (e.g., between the leading surface 46 and the trailing surface 48), from a first opening 58, toward the bottom surface 50, to a recess base 59. The recess 54 is sized and configured to receive the second body portion 14 (a portion of the second body portion 14, all of the second body portion 14), as described in more detail herein. The recess 54 has a first width 55 between the first and second

intermediate edges

42, 44 and a second width 57 between the first opening 58 and a recess base 59. The first width 55 is measured along a first imaginary line extending from the first intermediate edge 42 to the second intermediate edge 44. The second width 57 is measured along a second imaginary line that is different from and disposed parallel to the first imaginary line, and extends across the recess 54. The second width 57 is greater than the first width 55.

As shown in fig. 4, a portion of the front surface 46 extending from the first intermediate edge 42 toward the leading edge 38 is disposed at an angle 47 to an inner surface 56 defining a recess 54. In the illustrated embodiment, angle 47 is less than 90 degrees. As shown in FIG. 5, a portion of the rear surface 48 extending from the second intermediate edge 44 toward the rear edge 40 is disposed at an angle 49 to an inner surface 56 defining a recess 54. In the illustrated embodiment, angle 47 is less than 90 degrees.

Although a portion of front surface 46 and a portion of back surface 48 have been described as being disposed at an angle of less than 90 degrees relative to inner surface 56, a portion of the front surface and/or a portion of the back surface may be disposed at any suitable angle relative to the inner surface of the fluid system. The selection of a suitable angle to position a portion of the front surface and/or a portion of the back surface may be based on various considerations, such as a desired fluid flow around or through the fluid system. Example angles deemed suitable for positioning a portion of the front surface and/or a portion of the back surface of the first body portion relative to the inner surface include angles less than 90 degrees, angles less than 45 degrees, and any other angle deemed suitable for a particular embodiment.

The second opening 60 is disposed within the recess 54 on a portion of the curved surface of the inner surface 56, between the rear surface 48 and the bottom surface 50, and provides a passageway between a channel 106 (as described in more detail herein) and the cavity 64. The third opening 62 is disposed on the bottom surface 50 and provides access between the cavity 64 and the environment external to the first body portion 12. The cavity 64 is disposed between the rear surface 48 and the bottom surface 50, and is sized and configured to accommodate fluid traveling into the channel 106 (as described in more detail herein) and inclusions entering the channel 106 during movement of the fluid system 10 through the fluid. In the illustrated embodiment, the cavity 64 has an elliptical cross-sectional configuration that advantageously allows inclusions to accumulate within the cavity 64 during movement of the fluid system 10 through a fluid when the second opening 60 is open and the third opening 62 is closed. Inclusions (e.g., water and/or sand) accumulate in the cavity 64 due to having a higher density than the fluid (e.g., air) through which they travel, and a higher centrifugal force will be applied to the inclusions based on the structural arrangement (e.g., curved, non-linear structural arrangement) of the first and

second body portions

12, 14 and the structural arrangement of the passages 106 (e.g., the passages 106 are curved at an angle between about 10 degrees and about 180 degrees from the suction opening 104 toward the injection opening 102). Although the fluid system 10 has been described as a wing 32 of an aircraft traveling through air, the fluid system may travel through any suitable fluid, and the inclusions may be any inclusions disposed within the fluid.

Although the cavity 64 has been illustrated as having an elliptical cross-sectional configuration, the cavity may have any suitable cross-sectional configuration, and selection of a suitable cross-sectional configuration for the cavity according to a particular embodiment may be based on various considerations, including a desired flow pattern within the cavity as fluid and/or inclusions travel into the cavity. Example cross-sectional configurations that are deemed suitable include elliptical, circular, curved, partially curved, triangular, square, rectangular, and any other cross-sectional configuration deemed suitable for a particular embodiment.

Maintaining the position of the plates, such as first plate 20 and second plate 24 (as described in greater detail herein), during use may be accomplished using any suitable structure having any suitable structural arrangement capable of maintaining the position of the plates and allowing the plates to move axially along an axis. The selection of a suitable structure may be based on various considerations, such as the structural arrangement of the plate included in the fluid system, the structural arrangement of the first body portion, and/or the structural arrangement of the second body portion. Examples of structures that are considered suitable for inclusion in the fluid system to maintain the position of the plate and allow the plate to move axially along the axis include brackets, rails, grooves, rails, and any other structure that is considered suitable for a particular embodiment.

As shown in fig. 6, in the illustrated embodiment, the first body portion 12 includes a first track 66 and a second track 68, wherein the first and second tracks are each sized and configured to maintain the position of the plate and allow the plate to move axially along the axis. The first track 66 has a first track first rail 70 and a first track second rail 72, and the second track 68 has a second track first rail (not shown) and a second track second rail 76. In the illustrated embodiment, the configuration of the second track first rail is a mirror image of the configuration of the second track second rail 76. The length 71 of each of the first track first rail 70 and the first track second rail 72 is greater than the length 141 of the first plate 20 and extends along the length of the third opening 62. The length 75 of each of the second rail first rail and second rail 76 is greater than the length 165 of the second plate 24 and extends along the length of the second opening 60. The first track 66 is sized and configured to receive a portion of the first plate 20 relative to the first body portion 12, and the second track 68 is sized and configured to receive a portion of the second plate 24 relative to the first body portion 12.

Each of the first rail 66 (e.g., first rail 70, first rail second rail 72) and the second rail 68 (e.g., second rail first rail 76) may be attached to the first body portion 12 using any suitable attachment technique or method. Alternatively, the second track may be attached to both the first body portion and the second body portion, or to only the second body portion, and the second track may be positioned such that the second panel is movable between an open configuration and a closed configuration relative to the second opening. The selection of a suitable attachment technique or method of attachment between the rail and the first body portion and/or the second body portion according to a particular embodiment may be based on various considerations, including the materials forming the rail, the first body portion, and/or the second body portion. Example attachment techniques and methods that are considered suitable include welding, fusing, using adhesives, mechanical connectors, and/or forming the first body portion, the second body portion, and each rail (e.g., rail) as a unitary component. In the illustrated embodiment, each of the first and

second rails

66, 68 is a separate element welded to the first body portion 12.

The second body portion 14 is disposed within the recess 54 defined by the first body portion 12 and has a main body 78, a leading edge 80, a trailing edge 82, a top surface 84, and a bottom surface 86. The top surface 84 extends from the leading edge 80 to the trailing edge 82 and extends away from the chord length 13 along a first portion of the top surface 84 extending from the leading edge 80 toward the trailing edge 82 and extends toward the chord length 13 along a second portion of the top surface 84 extending from the trailing edge 82 toward the leading edge 80. The bottom surface 86 extends from the leading edge 80 to the trailing edge 82, and extends away from the chord length 13 along a first portion of the bottom surface 86 extending from the leading edge 80 toward the trailing edge 82, and extends toward the chord length 13 along a second portion of the bottom surface 86 extending from the trailing edge 82 toward the leading edge 82.

As shown in fig. 4, a portion of the top surface 84 extending from the leading edge 80 toward the trailing edge 82 is disposed at an angle 81 from a first axis 83 disposed perpendicular to the chord length 13. In the illustrated embodiment, angle 81 is less than 90 degrees. As shown in fig. 5, a portion of the top surface 84 extending from the trailing edge 82 toward the leading edge 80 is disposed at an angle 85 from a second axis 87 disposed perpendicular to the chord length 13. In the illustrated embodiment, the angle 85 is less than 90 degrees.

While portions of the top surface 84 have been described as being disposed at an angle of less than 90 degrees relative to an axis disposed perpendicular to the chord length 13, a portion of the top surface of the second body portion can be disposed at any suitable angle relative to an axis disposed perpendicular to the chord length. The selection of a suitable angle to position a portion of the top surface may be based on various considerations, such as a desired fluid flow around or through the fluid system. Example angles deemed suitable for positioning a portion of the top surface of the second body portion relative to an axis disposed perpendicular to the chord length include angles less than 90 degrees, angles less than 45 degrees, and any other angle deemed suitable for a particular embodiment.

Although the first body portion 12 and the second body portion 14 have been illustrated as having a particular structural arrangement and as separate structures attached to one another, the first body portion and the second body portion may have any suitable structural arrangement and may be attached to one another using any suitable attachment technique or method. The selection of a suitable structural arrangement of the first body portion and/or the second body portion and the selection of a suitable attachment technique or method according to a particular embodiment may be based on various considerations, such as a desired fluid flow through a channel cooperatively defined by the first body portion and the second body portion. For example, instead of positioning the top surface of the second body portion such that it is disposed between an imaginary surface extending from the front surface to the rear surface of the first body portion and the bottom surface of the first body portion, the top surface of the second body portion may be positioned such that it is partially disposed on an imaginary surface extending from the front surface to the rear surface of the first body portion, or such that it is disposed outside a space between an imaginary surface extending from the front surface to the rear surface of the first body portion and the bottom surface of the first body portion. Example attachment techniques and methods that are considered suitable for attachment between the first body portion and the second body portion include welding, fusing, using adhesives, mechanical connectors, and/or forming the first body portion and the second body portion as a unitary component. In the illustrated embodiment, the first body portion 12 is attached to the second body portion 14 by welding a support 16 to each of the first body portion 12 and the second body portion 14, as described in greater detail herein.

In the illustrated embodiment, the first body portion 12 and the second body portion 14 cooperatively define a spray opening 102, a suction opening 104, and a passage 106. The first intermediate edge 42 and the second body portion 14 cooperatively define an ejection opening 102. The second intermediate edge 44 and the second body portion 14 cooperatively define a suction opening 104. Injection opening 102 is disposed between leading edge 38 and suction opening 104, and suction opening 104 is disposed between injection opening 102 and trailing edge 40, such that injection opening 102 is disposed upstream of suction opening 104 when fluid system 10 is traveling in a forward direction (shown by arrow 39). The passage 106 extends from the ejection opening 102 to the suction opening 104 such that the ejection opening 102 communicates with the suction opening 104. During movement of fluid system 10 in a forward direction (shown by arrow 39), fluid external to fluid system 10 flows from intake opening 104 into passage 106, through passage 106 and exits at ejection opening 102. As shown in fig. 6, the second opening 60 and cavity 64 defined by the first body portion 12 are positioned on the first body portion 12 such that fluid traveling through the suction opening 104 and into the channel 106 toward the trailing edge 40 encounters the second opening 60 and cavity 64 when the second plate 24 is in the open configuration and before the fluid changes its direction of travel along the path of the channel 106 toward the ejection opening 102. Instead of including a recess on the first body portion, in embodiments where the first and second body portions are integral elements, the first and second body portions may cooperatively define a channel.

In the illustrated embodiment, the channel 106 has a first depth 108 and a second depth 110 that is greater than the first depth 108. Each of the first depth 108 and the second depth 110 extends from the first body portion 12 to the second body portion 14 and is measured along an imaginary plane disposed perpendicular to the chord length 13 of the fluid system 10. Although the channel 106 has been illustrated as having a particular structural configuration and varying depth along the length of the channel 106, the channel may have any suitable structural configuration, and selection of a suitable structural configuration for the channel may be based on various considerations, such as the desired fluid flow through the channel. For example, the depth of a channel may be constant along a portion or all of its length, or may vary along a portion or all of its length. Examples of cross-sectional configurations that are considered suitable for the channels include circular cross-sectional configurations, rectangular cross-sectional configurations, elliptical cross-sectional configurations, hexagonal cross-sectional configurations, polygonal cross-sectional configurations, and any other cross-sectional configuration considered suitable for a particular embodiment.

In the illustrated embodiment, the spray opening 102 is positioned relative to the chord length 13 such that an angle 101 is disposed between an axis 103 disposed perpendicular to the chord length 13 and a first imaginary line 105 extending from the axis 103 and away from the chord length 13. A first imaginary line 105 extends from the first intermediate edge 42 to the second body portion 14 and, as described in greater detail herein, is disposed perpendicular to a centerline of the fluid flow 190 through the spray opening 102 when the fluid system 10 is traveling in the forward direction and/or the fluid pressurizer 28 has been activated. Angle 101 is positive when traveling in a counterclockwise direction with respect to axis 103, and angle 101 is negative when traveling in a clockwise direction with respect to axis 103. In the illustrated embodiment, the angle 101 is about 30 degrees.

In the illustrated embodiment, the suction opening 104 is positioned relative to the chord length 13 such that an angle 109 is disposed between an axis 111 disposed perpendicular to the chord length 13 and a second imaginary line 113 extending from the axis 111 and away from the chord length 13. A second imaginary line 113 extends from the second intermediate edge 44 to the second body portion 14 and is disposed perpendicular to a centerline of the fluid flow 190 through the suction opening 104 when the fluid system 10 is traveling in the forward direction and/or the fluid pressurizer 28 has been activated. Angle 109 is positive when traveling in a clockwise direction relative to axis 111 and angle 109 is negative when traveling in a counterclockwise direction relative to axis 103. In the illustrated embodiment, angle 109 is about 75 degrees.

In the illustrated embodiment, the jet opening 102 (e.g., the center of the first imaginary line 105) is disposed a distance 115 from the leading edge 38 equal to about 0.1% to about 30% of the chord length 13, and the length 117 of the first imaginary line 115 is equal to about 0.001% to 5% of the chord length 13. In the illustrated embodiment, the suction opening 104 (e.g., the center of the second imaginary line 113) is disposed a distance from the leading edge 38 equal to about 50% to about 95% of the chord length 13, and the length 121 of the second imaginary line 113 is equal to about 0.002% to 10% of the chord length 13.

While the injection and

suction openings

102, 104 have been described as being disposed at a particular angle relative to the chord length 13, a particular length, and a particular distance from the leading edge 38, the injection and suction openings included in the fluid system may be disposed at any suitable angle relative to the chord length, may have any suitable length, and may be disposed at any suitable distance from the leading edge of the first body portion. The selection of a suitable angle for positioning the injection and/or suction openings relative to the chord length, the selection of a suitable length for the injection and/or suction openings, and/or the selection of a suitable distance for positioning the injection and/or suction openings from the leading edge of the first body portion may be based on various considerations, such as a desired fluid flow across or through the fluid system. For example, alternative angles that are considered suitable for

angles

101 and 109 include angles between about 90 degrees (e.g., such that jet opening 102 is parallel to chord 13, such that suction opening 104 is parallel to chord 13) to about-30 degrees, angles between about 50 degrees to about 80 degrees, angles between about 45 degrees to about-15 degrees, angles equal to about 12 degrees, angles equal to about 78 degrees, and any other angle considered suitable for a particular embodiment. Examples of alternative distances that are considered suitable for distance 115 include a distance between about 0.1% to about 30% of chord length 13, a distance equal to about 15% of chord length 13, and any other distance considered suitable for a particular embodiment. Examples of alternative lengths considered suitable for length 117 include a length between about 0.001% and 5% of chord length 13, a length equal to about 2.5% of the chord length, and any other length considered suitable for a particular embodiment. Examples of alternative distances considered suitable for distance 119 include a distance between about 50% to about 95% of chord length 13, a distance equal to about 72.5% of chord length 13, and any other distance considered suitable for a particular embodiment. Examples of alternative lengths considered suitable for length 121 include a length between about 0.002% and 10% of chord length 13, a length equal to about 5% of chord length 13, and any other length considered suitable for a particular embodiment.

While the first body portion 12 and the second body portion 14 have been illustrated as defining fixed angles (e.g., angle 47, angle 49, angle 81, angle 85, angle 101, angle 109) at the ejection opening 102 and the suction opening 104, alternative embodiments may include structures such as an actuator, a battery, and/or a switch that are operably connected to one or more devices that provide a mechanism for adjusting the angles described herein (e.g., angle 47, angle 49, angle 81, angle 85, angle 101, angle 109). The inclusion of a structure that allows the angle to be manipulated during use is considered advantageous at least because it provides a mechanism for varying the angle at which the jet formed by the ejection slot can be positioned relative to the top surface of the second body portion and/or the rate at which fluid travels through the cooperatively formed channel between the first and second body portions.

Each of the plurality of supports 16 is disposed between the first body portion 12 and the second body portion 14 and has a first end 112 attached to the first body portion 12 and a second end 114 attached to the second body portion 14. Each of the plurality of supports 16 may be attached to the first and

second body portions

12, 14 using any suitable attachment technique or method. The selection of a suitable attachment technique or method of attachment between the support and the first body portion and/or the second body portion according to a particular embodiment may be based on various considerations, including the materials forming the support, the first body portion, and/or the second body portion. Example attachment techniques and methods that are considered suitable include welding, fusing, using adhesives, mechanical connectors, and/or forming the first body portion, the second body portion, and each support as a unitary component. In the illustrated embodiment, each of the plurality of supports 16 is welded to both the first body portion 12 and the second body portion 14.

Although each of the plurality of supports 16 has been shown as being disposed at a particular location between the first body portion 12 and the second body portion 14, the supports may be disposed at any suitable location between the first body portion and the second body portion of the fluid system. The selection of the appropriate location for the support according to a particular embodiment may be based on various considerations, including the structural configuration between the first body portion and the second body portion. While each of the plurality of supports 16 has been illustrated as having a particular structural configuration, the supports may have any suitable structural configuration, and selection of a suitable structural configuration for a support according to a particular embodiment may be based on various considerations, including the desired rate at which fluid is intended to flow through the channel. For example, the support may be formed such that it is cylindrical, cubic, such that it defines an airfoil oriented towards the first body portion or the second body portion, or such that it forms part of a wall defining the passage.

Although fluid system 10 has been illustrated as including a plurality of struts 16, fluid system may include any suitable number of struts, and selection of a suitable number of struts included in the fluid system may be based on various considerations, including the desired rate at which fluid is intended to flow through the passage defined through the fluid system. Example numbers of struts considered suitable for inclusion in a fluid system include zero, one, at least one, two, multiple, three, four, five, and any other number considered suitable for a particular embodiment. For example, instead of including one or more supports, the fluid system may have the second body portion directly attached to the first body portion.

In the illustrated embodiment, each of the plurality of spacers 18 has a first end 120, a second end 122, and a main body 124, and is attached to both the first body portion 12 and the second body portion 14 to define a plurality of spray openings 126. In the illustrated embodiment, each of the plurality of spacers 18 is partially disposed within the ejection opening 102 such that the ejection opening 102 is partially obstructed by each of the plurality of spacers 18. This is believed to be advantageous at least because partially obstructing the jet opening 102 with the plurality of spacers 18 provides a mechanism for positioning a plurality of jets 192 (as described in greater detail herein) along the top surface 84 and various lift profiles (lift profiles) of the second body portion 14.

In the illustrated embodiment, the body 124 of each of the plurality of spacers 18 defines a front surface 128, an edge 130, and has a rectangular cross-sectional configuration such that each of the plurality of spacers 18 has a curved-type cubic structural arrangement configured to mate with a portion of the length of the channel 106. The front surface 128 of each of the plurality of spacers 18 extends from the first body portion 12 to the second body portion 14 and is considered to be the surface facing the environment outside of the passage 106 cooperatively defined by the first body portion 12 and the second body portion 14. The edge 130 is disposed at a junction between the first end 120 and the front surface 128 of each of the plurality of spacers 18. In the illustrated embodiment, the edge 130 of each of the plurality of spacers 18 is coplanar with the first intermediate edge 42.

Each of the plurality of spacers 18 may be attached to the first body portion 12 and the second body portion 14 using any suitable attachment technique or method, and the selection of a suitable attachment technique or method for attachment between the spacer and the first body portion and/or the second body portion according to a particular embodiment may be based on various considerations, including the material from which the spacer, the first body portion, and/or the second body portion are formed. Example attachment techniques and methods that are considered suitable include welding, fusing, using adhesives, mechanical connectors, and/or forming the first body portion, the second body portion, and each spacer as a unitary component. In the illustrated embodiment, each of the plurality of spacers 18 is a separate component that is welded to both the first body portion 12 and the second body portion 14.

Although each of the plurality of spacers 18 has been illustrated as having a particular structural arrangement and being positioned at a particular location on the fluid system 10, the spacers may be positioned at any suitable location on the fluid system and may have any suitable structural arrangement. The selection of a suitable location to position the spacer and the selection of a suitable structural arrangement of the spacer according to a particular embodiment may be based on various considerations, such as a desired flow through the channel defined by the fluid system and/or a desired flow around the fluid system. For example, instead of positioning the edge between the first end of the spacer and the front surface to be coplanar with the first intermediate edge of the first body portion, the edge between the first end of the spacer and the front surface may be positioned such that it is disposed outside of the channel cooperatively defined by the first body portion and the second body portion (e.g., such that it is not coplanar with the first intermediate edge and is positioned downstream of the first intermediate edge), or such that it is disposed within the channel cooperatively defined by the first body portion and the second body portion (e.g., such that it is not coplanar with the first intermediate edge). Depending on the lift and thrust desired to be achieved by the fluid system, the spacers included in the fluid system may be equally (e.g., uniformly) spaced apart from each other, or spaced apart from each other by different lengths. Example structural arrangements considered suitable for the spacer include: a cubical, curved cubical, cylindrical spacer; a spacer comprising one or more curved surfaces; spacers having a "C" shaped cross-section such that a first portion is disposed at or near an ejection opening of the fluid system and a second portion extends partially through a portion of the channel, as well as any other structural arrangement deemed suitable for a particular embodiment.

While a plurality of spacers 18 have been shown, the fluid system may include any suitable number of spacers, and selection of a suitable number of spacers for inclusion in the fluid system according to a particular embodiment may be based on various considerations, such as a desired fluid flow through the channels defined by the fluid system and/or a desired fluid flow around the fluid system. Examples of the number of spacers considered suitable for inclusion in a fluid system include one, at least one, two, multiple, three, four, five, six, seven, eight, nine, ten, or more, and any other number considered suitable for a particular embodiment.

As shown in fig. 6, in the illustrated embodiment, the first plate 20 is movably attached to the first body portion 12 and has a first surface 136, a second surface 138, a thickness 139 extending from the first surface 136 to the second surface 138, a length 141, and a main body 140 defining a tooth geometry 142. The first plate 20 has a closed configuration as shown in fig. 2 and 6 and an open configuration as shown in fig. 3, and is movable between these configurations via a first actuator 22, as described in more detail herein. In the closed configuration, the first plate 20 is disposed over the third opening 62 (e.g., completely covering the third opening 62), with the first surface 136 facing the cavity 64 defined by the first body portion 12, and the second surface 138 facing the cavity 64 and the environment external to the passage 106. As described in greater detail herein, the tooth geometry 142 is sized and configured to mate with a tooth geometry 154 defined by a portion of the first actuator 22.

The actuators included in the fluid system can include any suitable actuator, and selection of a suitable actuator can be based on various considerations, such as the structural arrangement of the plate included in the fluid system and/or the material from which the plate is formed. Examples of actuators considered suitable for inclusion in the fluid system include electric motors, pneumatic actuators, hydraulic actuators, actuators that produce rotational motion about a longitudinal axis of an attached shaft, actuators that produce axial motion of a shaft along its longitudinal axis, and any other actuator considered suitable for a particular embodiment. In the illustrated embodiment, each of the first and

second actuators

22, 26 is an electric motor.

The first actuator 22 is movable between a closed state, an open state, and a closed state, and includes a motor 148, a shaft 150, and a drive gear 152 defining a tooth geometry 154. The motor 148 may be operatively connected to any suitable portion of a device, system or component on which the fluid system is disposed to provide power to the first actuator 22 (e.g., batteries, electric motors), as well as to provide a mechanism (e.g., one or more switches) for moving the first actuator 22 between the closed, open, and closed states. The first actuator 22 is positioned relative to the first plate 20 such that the tooth geometry 154 of the drive gear 152 is in communication with and mates with the tooth geometry 142 of the first plate 20, and movement of the first plate 20 can be effected via movement of the first actuator 22 between its states.

In the closed state, the first actuator 22 maintains its position such that the first plate 22 maintains its position relative to the first body portion 12. In the open state, the first actuator 22 moves the shaft 150 in a first direction about the longitudinal axis of the shaft 150 such that the first plate 22 moves in the first direction along the longitudinal axis 11 of the fluid system 10 and fluid and/or inclusions disposed within the cavity 64 may pass through the third opening 62 and into the environment outside of the cavity 64. In the closed state, the first actuator 22 moves the shaft 150 in the second direction about the longitudinal axis of the shaft 150 such that the first plate 20 moves in a second direction along the longitudinal axis 11 of the fluid system 10 opposite the first direction and fluid and/or inclusions disposed within the cavity 64 may accumulate within the cavity 64 and not pass through the third opening 62.

As shown in fig. 6, in the illustrated embodiment, the second plate 24 is movably attached to the first body portion 12 within the cavity 64 and has a first surface 160, a second surface 162, a thickness 163 extending from the first surface 160 to the second surface 162, a length 163, and a body 164 defining a tooth geometry 166. The second plate 24 has a closed configuration as shown in fig. 2 and 6 and an open configuration as shown in fig. 3, and is movable between these configurations via the second actuator 26. In the closed configuration, the second plate 22 is disposed over the second opening 60 (e.g., completely covering the second opening 60), with the first surface 160 facing the channel 106 cooperatively defined by the first and

second body portions

12, 14 and the second surface 162 facing the cavity 64 defined by the first body portion 12. As described in greater detail herein, the tooth geometry 166 is sized and configured to mate with a tooth geometry 174 defined by a portion of the second actuator 26.

The second actuator 26 is movable between a closed state, an open state, and a closed state, and includes a motor 168, a shaft 170, and a drive gear 172 defining a tooth geometry 174. The motor 168 may be operatively connected to any suitable portion of the device, system or component to which the fluid system is attached to provide power to the second actuator 26 (e.g., a battery, an electric motor), as well as a mechanism (e.g., one or more switches) for moving the second actuator 26 between the closed, open, and closed states. The second actuator 26 is positioned relative to the second plate 24 such that the tooth geometry 174 of the drive gear 172 is in communication with and mates with the tooth geometry 166 of the second plate 24, and movement of the second plate 24 can be effected via movement of the second actuator 26 between its states.

In the closed state, the second actuator 26 maintains its position such that the second plate 24 maintains its position relative to the first body portion 12. In the open state, the second actuator 26 moves the shaft 150 in a first direction about the longitudinal axis of the shaft 150 such that the second plate 24 moves away from the bottom surface 50 of the first body portion 12 and toward the rear surface 48, and fluid and/or inclusions traveling through the channel 106 may enter the cavity 64 defined by the first body portion 12 and accumulate in the cavity 64 if the first plate 20 is closed. Alternatively, if the first plate 20 is open, fluid and/or inclusions may pass through the second and

third openings

60, 62 and into the environment outside of the channel 106 and cavity 64. In the closed state, the second actuator 26 moves the shaft 150 in a second direction, opposite the first direction, about the longitudinal axis of the shaft 150 such that the second plate 24 moves away from the rear surface 48 of the first body portion 12 and toward the bottom surface 50, and fluid and/or inclusions traveling through the channel 106 do not enter the cavity 64 but travel through the second plate 24 and exit through the spray opening 102.

Although each of the first plate 20, the first actuator 22, the second plate 24, and the second actuator 26 have been illustrated as having a particular structural arrangement and being located at a particular location on the fluid system, the first plate, the first actuator, the second plate, and the second actuator may have any suitable structural arrangement and may be located at any suitable location on the fluid system. Suitable structural arrangements of the first plate, the first actuator, the second plate, and the second actuator and/or the locations to position them may be selected based on various considerations, such as a desired flow around the fluid system and/or a desired flow through a passage defined by the fluid system. For example, instead of including mating tooth geometry between the first plate and the first actuator and/or between the second plate and the second actuator, the plate may be positioned relative to the actuator including the plate and a threaded shaft that moves in and out of the motor causing the plate to contact a portion of the plate and the plate to move between the closed and open configurations. Instead of positioning each of the first plate, the first actuator, the second plate, and the second actuator in the cavity defined by the first body portion, each of these components may be positioned at other suitable locations on the fluid system. For example, the first plate and the first actuator may be positioned in the channel such that the first plate may open and close the second opening. However, it is believed that positioning the first plate and the first actuator in the cavity of the first body portion is beneficial to avoid manipulating the flow through the channel during use. For example, the second plate and the second actuator may be positioned on the bottom surface of the first body portion such that the second plate may open and close the third opening. However, it is believed that positioning the second plate and the second actuator in the cavity of the first body portion is beneficial to avoid manipulating the flow over the first body portion.

The fluid pressurizer included in the fluid system may include any suitable device, system or component capable of pressurizing fluid, and the selection of a suitable fluid pressurizer may be based on various considerations, such as the structural arrangement of the channels cooperatively defined by the first body portion and the second body portion. Examples of fluid pressurizers considered suitable for inclusion in a fluid system include electric pumps, pneumatic pumps, hydraulic pumps, fans, micro-compressors, vacuum machines, and any other fluid pressurizer considered suitable for a particular embodiment. In the illustrated embodiment, the fluid pressurizer 28 is an electric pump. In alternative embodiments, the pump may be omitted from the fluid system or may comprise a fan, or may be air injected into the passage from an engine (e.g. a jet engine) attached to the fluid system.

In the illustrated embodiment, the fluid pressurizer 28 is disposed within the passage 106 and is in communication with the ejection opening 102 and the suction opening 104. The fluid pressurizer 28 is movable between a closed state and an open state and includes a pump 178, a suction port 180, and a discharge port 182. The inclusion of the fluid pressurizer 28 is believed to be advantageous at least because it provides a mechanism for pressurizing the fluid 191 flowing through the passage 106 and forming one or more jets 192 as the fluid 191 exits the spray opening 102. The fluid pressurizer 28, such as the pump 178, may be operably connected to any suitable portion of the device, system or component on which the fluid system is disposed to provide power to the fluid pressurizer 28 (e.g., a battery, an electric motor), as well as to provide a mechanism (e.g., one or more switches) for moving the fluid pressurizer 28 between the closed state and the open state. Alternative embodiments may include a fluid pressurizer that may vary the degree of pressurization of the fluid through the passage 106.

In the illustrated embodiment, the fluid pressurizer 28 is attached to both the first body portion 12 and the second body portion 14 and is positioned such that the suction port 180 extends toward a first portion of the passage 106 from the suction opening 104 to the pump 178 (e.g., the suction port 180 is toward the suction opening 104) and the discharge port 182 extends toward a second portion of the passage 106 from the ejection opening 102 to the pump 178 (e.g., the discharge port 182 is toward the ejection opening 102). In the closed state, the pump 178 does not draw any fluid through the passage 106. In the open state, the pump 178 draws fluid through the intake opening 104, through the passage 106, and the pump 178, and pushes fluid out of the ejection opening 102.

The fluid pressurizer may be attached to the first body portion and/or the second body portion using any suitable attachment technique or method, and the selection of a suitable attachment technique or method of attachment between the fluid pressurizer and the first body portion and/or the second body portion according to a particular embodiment may be based on various considerations, including the materials forming the fluid pressurizer, the first body portion, and/or the second body portion. Example attachment techniques and methods that are considered suitable include welding, fusing, the use of adhesives, mechanical connectors, and any other technique or method that is considered suitable for a particular embodiment. In the illustrated embodiment, the fluid pressurizer is secured to the first body portion 12 and the second body portion 14 using mechanical connectors (e.g., screws, bolts). However, alternative embodiments may include a fluid pressurizer attached only to the first body portion or the second body portion.

As shown in fig. 7, conventional airfoils are generally solid structures that allow fluid flow around the airfoil, thereby producing a relatively large degree of separation through the fluid flow field relative to the fluid system 10 as shown in fig. 1, wherein the fluid system 10 has a first body portion 12 stacked with a second body portion 14 along the span. As shown in fig. 1, 2, and 3, fluid flow 190 interacts with fluid system 10 such that fluid 191, which in this embodiment is air, travels around fluid system 10 and through fluid system 10. Fluid 191 travels into the suction opening 104, through the passage 106, pressurized by the fluid pressurizer 28, exits at the injection opening 102 through each of the plurality of injection openings 126, and is injected into the fluid stream 191 above the top surface 84 of the second body portion 14 as a plurality of jets 192. Depending on the number of spacers, pumps and/or channels included in the fluid system, alternative embodiments may form a single jet above the top surface of the second body portion. In the illustrated embodiment, the jet 192 of fluid is substantially tangential to the top surface 84 of the second body portion 14 downstream of the ejection opening 102. One or more jets 192 are co-current jets in that they form a continuous fluid or fluid stream that is ejected as a single fluid. In the illustrated embodiment, the one or more jets 192 are substantially tangential to the top surface 84 of the second body portion 14 downstream of the ejection opening 102. However, alternative embodiments may include one or more jets that are not tangential to the top surface of the second body portion (e.g., the jets may vary based on the position of the movable first intermediate edge, may be at 45 degrees relative to the top surface of the second body portion, and may be between about 9 degrees (tangential) to about 45 degrees relative to the top surface of the second body portion). As described herein, the angle at which the first body portion 12 is disposed relative to the inner surface 56 may vary at the spray opening 102, which provides a mechanism for varying the angle at which the jet forms relative to the top surface of the second body portion (e.g., may vary multiple times in flight during use).

In the illustrated embodiment, when the fluid system 10 is moving in a forward direction (shown by arrow 39) and the fluid pressurizer 28 is in an open state, the fluid 191 travels through the suction opening 104 and into the channel 106, travels toward the trailing edge 40, and encounters the second opening 60 and the cavity 64 when the second plate 24 is in the open configuration and before the fluid changes direction toward the injection opening 102. As shown in fig. 2, inclusions 193 that have passed through the second opening 60 accumulate in the cavity 64 when the first panel 20 is in the closed configuration. To remove the inclusions 193 from the cavity 64, as shown in fig. 3, the first plate 20 is moved to the open configuration such that the inclusions 193 and any other inclusions that enter the cavity 64 when the first and

second plates

20, 22 are open may pass through the third opening 62 and into the cavity 64 and the environment external to the fluid system 10. Alternatively, the inclusions may be removed from the cavity by moving the second plate to the closed configuration and moving the first plate to the open configuration such that the inclusions may pass through the third opening and into the cavity and the environment external to the fluid system. The removal of inclusions may be accomplished at any suitable time, for any suitable duration, and at any suitable location. For example, if the fluid system is in flight, the removal of inclusions may occur during flight or upon landing of the fluid system.

As described above, as shown in fig. 6, the second opening 60 and cavity 64 are positioned on the first body portion 12 such that fluid entering the channel 106 through the suction opening 104 toward the trailing edge 40 encounters the second opening 60 and cavity 64 when the second plate 24 is in the open configuration and before the fluid changes direction of travel toward the ejection opening 102. In the illustrated embodiment, each of the second opening 60, the third opening 62, and the cavity 64 is disposed between the trailing edge 40 and a plane perpendicular to the chord length 13 and containing the trailing edge 82 of the second body portion 14. In the illustrated embodiment, the inclusions 193 disposed in the fluid 191 (e.g., air) are of a higher density than the fluid 191, and when the fluid system 10 is moved in a forward direction (as indicated by arrow 39) and/or the fluid pressurizer 28 is in an open state, the inclusions 193 experience a higher centrifugal force, causing the inclusions 193 to be forced through the second opening 60 and into the cavity 64. The location of the second opening 60 and the cavity 64 is believed to be advantageous at least because it provides a mechanism for filtering inclusions 193 that enter the passage 106 defined by the fluid system 10 before the inclusions 193 enter the fluid pressurizer 28, such as the pump 178. Alternatively, when there are relatively few or no inclusions in the fluid through which the fluid system travels, the second plate may be positioned in a closed configuration such that the fluid may travel through the suction opening and the passage and directly to the fluid pressurizer.

While each of the second opening 60, the third opening 62, and the cavity 64 have been illustrated as being disposed between the trailing edge 40 and a plane perpendicular to the chord length 13 and containing the trailing edge 82 of the second body portion 14, the second opening, the third opening, and the cavity of the fluid system can be positioned at any suitable location on the fluid system. The selection of suitable locations to position the second opening, the third opening, and/or the cavity may be based on various considerations, such as a desired fluid flow through a channel defined by the fluid system. For example, the third opening and/or cavity defined by the first body portion may be positioned at any suitable location on the first body portion such that each of the cavity and/or the third opening is in communication with the second opening. The third opening and/or cavity defined by the first body portion may be positioned between the recess base and the bottom surface of the first body portion or between the front surface and the bottom surface of the first body portion.

Optionally, the fluid system may include one or more sensors within the cavity defined by the first body portion, such sensors being configured to alert a user of the fluid system (e.g., a pilot of the aircraft) that inclusions accumulated within the cavity have reached a certain level and removal of the inclusions should be completed. Any suitable sensor having any suitable structural configuration may be included in the fluid system, and the selection of a suitable sensor may be based on various considerations, such as the intended use of the sensor. Example sensors considered suitable for inclusion in a fluid system include fluid level sensors, ultrasonic sensors, infrared sensors, imaging devices, and any other sensor considered suitable for a particular embodiment. A sensor included in the fluid system may be operatively connected to a portion of a device, system, or component on which the fluid system is disposed to provide power to the sensor (e.g., battery, electric motor), provide communication between the sensor and a user of the fluid system, and provide a mechanism (e.g., one or more switches) for moving the sensor between an off state and an on state.

The first body portion 12, the second body portion 14, the plurality of supports 16, the plurality of spacers 18, the first plate 20, the second plate 22, the first actuator 24, the second actuator 26, the fluid pressurizer 28, and any other features, elements, or components described herein and included in the fluid system 10 can be formed from any suitable material and manufactured using any suitable technique. Suitable materials for forming the first body portion, the second body portion, the plurality of supports, the plurality of spacers, the first plate, the second plate, the first actuator, the second actuator, the fluid pressurizer, and any other features, elements, or components described herein and included in the fluid system, and suitable techniques for manufacturing the first body portion, the second body portion, the plurality of supports, the plurality of spacers, the first plate, the second plate, the first actuator, the second actuator, the fluid pressurizer, and any other features, elements, or components described herein and included in the fluid system, can be selected based on various considerations, including the intended use of the fluid system. Example materials considered suitable for forming the first body portion, the second body portion, the plurality of supports, the plurality of spacers, the first plate, the second plate, the first actuator, the second actuator, the fluid pressurizer, and/or any other feature, element, or component described herein include conventional materials, metals, steels, alloys, plastics, combinations of metals and plastics, composite materials, and any other materials considered suitable for a particular embodiment. Example methods of manufacture deemed suitable for manufacturing the first body portion, the second body portion, the plurality of supports, the plurality of spacers, the first plate, the second plate, the first actuator, the second actuator, the fluid pressurizer, and/or any other feature, element, or component described herein include conventional methods and techniques, injection molding, machining, 3D printing, and/or any other method or technique deemed suitable for a particular embodiment. For example, the first body portion and the second body portion of the fluid system may be formed of a first material, and each spacer included in the fluid system may be formed of a second material different from the first material. For example, a panel included in a fluid system may be formed of a moldable material such that the panel is formed to conform to the structure to which it is attached as the panel is moved between its open and closed configurations.

Although the first body portion 12, the second body portion 14, the plurality of supports 16, the plurality of spacers 18, the first plate 20, the second plate 22, the first actuator 24, the second actuator 26, the fluid pressurizer 28, and any other features, elements, or components described herein and included in the fluid system 10 have been illustrated as having a particular structural configuration, the first body portion, the second body portion, the plurality of supports, the plurality of spacers, the first plate, the second plate, the first actuator, the second actuator, the fluid pressurizer, and any other features, elements, or components described herein and included in the fluid system may have any suitable structural arrangement. The selection of a suitable structural arrangement of the first body portion, the second body portion, the plurality of supports, the plurality of spacers, the first plate, the second plate, the first actuator, the second actuator, the fluid pressurizer, and any other feature, element, or component described herein and included in the fluid system may be based on various considerations, including the intended use of the fluid system.

The embodiments described herein are believed to be advantageous for any type of flight, including supersonic flight (e.g., between approximately mach 0.6 and approximately mach 0.95). When included on an aircraft that is about to complete a supersonic flight or on an aircraft that may generate a shockwave on the upper surface of the airfoil, the suction opening may be disposed downstream of where the shockwave may be generated or between the trailing edge and where the shockwave may be generated.

Fig. 8 and 9 illustrate another example fluid system 210. Fluid system 210 is similar to fluid system 10 shown in fig. 1, 2, 3, 4, 5, and 6 and described above, except as described in detail below. The fluid system 210 has a longitudinal axis 211, a chord length 213, a first body portion 212, a second body portion 214, a plurality of supports 216, a plurality of spacers 218, and a fluid pressurizer 228. In the illustrated embodiment, the fluid system 210 is included on an airfoil 230 of a wing 232 of an aircraft.

In the illustrated embodiment, fluid system 210 is omitted from including a second opening, a third opening, a cavity, a first plate, a first actuator, a second plate, and a second actuator, such as those described with respect to fluid system 10. However, any of the fluid systems described herein, such as fluid system 210, may include a plurality of supports, second openings, third openings, cavities, first plates, first actuators, second plates, and/or second actuators, such as those described with respect to fluid system 10.

In the illustrated embodiment, the second body portion 214 defines a plurality of recesses 402, the fluid system 210 includes a plurality of spacer actuators 404, and each spacer of the plurality of spacers 218 is movable between a first position, as shown in fig. 8, and a second position, as shown in fig. 9. In the first position, each of the first volume of the plurality of spacers 218 is disposed within the channel 306 and partially obstructs fluid flow through the channel 306. In the second position, each spacer of the plurality of spacers 218 is disposed entirely within a recess of the plurality of recesses 402 such that a second volume of each spacer of the plurality of spacers 218 is disposed within the channel 306. In the illustrated embodiment, the first volume is greater than the second volume.

Each of the plurality of recesses 402 extends from the top surface 284 and into the main body 278 of the second body portion 214 that is sized and configured to receive a spacer of the plurality of spacers 218 and a spacer actuator of the plurality of spacer actuators 404.

The spacer actuator included in the fluid system may include any suitable actuator, and selection of a suitable actuator may be based on various considerations, such as the structural arrangement of the recess defined by the second body portion and/or the structural arrangement of the spacer included in the fluid system. Examples of spacer actuators that are considered suitable for inclusion in a fluid system include electric motors, pneumatic actuators, hydraulic actuators, actuators that produce rotational motion about the longitudinal axis of an attached shaft, actuators that produce axial motion along the longitudinal axis of a shaft, and any other actuator that is considered suitable for a particular embodiment. In the illustrated embodiment, each of the plurality of spacer actuators 404 is an electric motor.

Each of the plurality of spacer actuators 404 is movable between a closed state, an open state, and a closed state, and includes a motor 406 and a threaded shaft 408. A spacer of the plurality of spacers 218 is attached to the threaded shaft 408 of each of the plurality of spacer actuators 404. The motor 406 may be operably connected to any suitable portion of a device, system, or component on which the fluid system is disposed to provide power to the actuator (e.g., batteries, electric motors), as well as to provide a mechanism (e.g., one or more switches) for moving the actuator between the closed, open, and closed states. Each of the plurality of spacer actuators 404 is positioned relative to a spacer of the plurality of spacers 218 such that movement of the spacer may be effected via movement of the actuator between its states.

In the closed state, each of the plurality of spacer actuators 404 maintains the position of a spacer attached thereto relative to the second body portion 214. In the open state, the threaded shaft 408 is rotated about its longitudinal axis in a first direction such that an attached one of the plurality of spacers 218 advances into a one of the plurality of recesses 402 to its second position (as shown in fig. 9), and fluid passing through the passage 306 may pass through the spacer and out of the ejection opening 302. In the second position, each of the plurality of spacers 218 is disposed within a recess of the plurality of recesses 402 such that it does not obstruct any fluid flow through the channel 306, and a portion (e.g., surface) of each of the plurality of spacers 218 is disposed on an imaginary surface that extends across the recess within which it is disposed and is continuous with the main body of the second body portion 214. In the closed state, the threaded shaft 408 is rotated about its longitudinal axis in a second direction opposite the first direction such that an attached spacer of the plurality of spacers 218 is advanced out of a recess of the plurality of recesses 402 to its first position, as shown in fig. 8, and fluid passing through the channel 306 is impeded by the spacer. In the first position, each of the plurality of spacers 218 is partially disposed outside of a recess of the plurality of recesses 402 such that it blocks fluid flow through the channel 306.

While each of the plurality of spacers 218 has been described as being movable between the first and second positions, any suitable number of the plurality of spacers may be movable between the first and second positions. The selection of an appropriate number of movable spacers of the plurality of spacers included in the fluid system may be based on various considerations, such as the desired flow through the channel defined by the fluid system. For example, as described in more detail herein, one or more spacers may be fixed in position, such as those described with respect to fig. 1, 2, 3, 4, 5, and 6, and the one or more spacers may be movable between a first position and a second position, such as those described with respect to fig. 8 and 9 and with respect to fig. 10 and 11. It is considered advantageous to include one or more spacers that are movable between a first position in which the spacer or each of the plurality of spacers obstructs a portion of the ejection opening and a second position in which the spacer or each of the plurality of spacers do not obstruct a portion of the ejection opening, at least because it provides a mechanism for a user of the fluid system to manipulate the power consumption of the fluid system, the fluid force applied to the fluid system, the flow characteristics of the jet across the second body portion and/or the flow characteristics of the fluid across the first body portion, the second body portion and/or the channel during use of the fluid system (e.g., during flight). For example, when a fluid system such as the fluid system 210 shown here with respect to fig. 8 and 9 or the fluid system 610 shown in fig. 10 and 11 and described in more detail herein is included on a wing of an aircraft, a greater thrust may be desired at takeoff while a small amount of lift may be desired at cruise altitude. In this example, it is believed to be advantageous to position one or more spacers in a first position during takeoff and one or more spacers in a second position during cruise altitude flight to increase thrust at takeoff, reduce lift required at cruise altitude, and reduce the energy required to achieve lift and thrust.

While multiple spacer actuators 404 have been shown, the fluid system may include any suitable number of actuators, and the selection of a suitable number of actuators included in the fluid system may be based on various considerations, such as the structural arrangement of one or more spacers included in the fluid system. For example, a single actuator may be operably attached to each of the plurality of spacers (e.g., using an elongated member) such that movement of the actuator between the closed state, the open state, and the closed state moves each of the plurality of spacers attached to the actuator between its first and second positions.

While each spacer of the plurality of spacers 218 has been shown as being disposed within a recess of the plurality of recesses 402 when it is in its second position such that it does not obstruct any fluid flow through the channel 306, the spacer may have any suitable structural configuration relative to the channel when in its first and/or second positions. Selection of a suitable structural configuration of the spacer in the first and second positions may be based on various considerations, such as a desired flow through a passage defined by the fluid system. For example, instead of being disposed entirely within the recess defined by the second body portion in the second position, the spacer may be partially disposed within the channel when in the second position such that it is partially disposed in the channel and partially obstructs fluid flow through the channel. While the second body portion 214 has been illustrated as defining a plurality of recesses 402, and each recess of the plurality of recesses 402 is illustrated as an actuator having a plurality of spacer actuators 404 disposed therein, alternative embodiments may include a first body portion defining a structure similar to that illustrated with respect to the second body portion 214, such that the first body portion defines a plurality of recesses, each recess sized and configured to receive an actuator and a spacer, such that the spacer may be moved between a first position and a second position, as described herein.

Fig. 10 and 11 illustrate another example fluid system 510. Fluid system 510 is similar to fluid system 210 shown in fig. 8 and 9 and described above, except as described in detail below. Fluid system 510 has a longitudinal axis 511, a chord length 513, a first body portion 512, a second body portion 514, a plurality of supports 516, a spacer 518, and a plurality of fluid pressurizers 528. In the illustrated embodiment, fluid system 510 is included on an airfoil 530 of a wing 532 of an aircraft.

In the illustrated embodiment, first body portion 512 and second body portion 514 cooperatively define a jet opening 602, a suction opening 604, a plurality of discrete channels 606, and a recess 702, and fluid system 510 includes a spacer actuator 704 and a plurality of batteries 710. In the illustrated embodiment, the spacer 518 is movable between a first position, as shown in fig. 10, and a second position, as shown in fig. 11. In the first position, a first volume of spacer 518 is disposed within each of the plurality of channels 606 and partially obstructs fluid flow through each of the plurality of channels 606. In the second position, a second volume of spacer 518 is disposed within each of the plurality of channels 606. In the illustrated embodiment, the first volume is greater than the second volume.

In the illustrated embodiment, a recess 702 extends from the top surface 584 and into the main body 578 of the second body portion 514, the recess being sized and configured to receive the spacer 518 and the spacer actuator 704. The spacer actuator 704 is movable between a closed state, an open state, and a closed state, and includes a motor 706 and a shaft 708. The spacer 518 is attached to the shaft 708 of the spacer actuator 704 and has a length equal to the length of the jet opening 602. The motor 706 may be operably connected to any suitable portion of a device, system, or component on which the fluid system is disposed to provide power to the actuator (e.g., a battery, an electric motor), as well as to provide a mechanism (e.g., one or more switches) for moving the actuator between the closed, open, and closed states. The spacer actuator 704 is positioned relative to the spacer 518 such that movement of the spacer can be achieved via movement of the actuator between its states.

In the closed state, the spacer actuator 704 maintains the position of the spacer 518 relative to the second body portion 514. In the open state, the shaft 708 is moved in a first direction along its longitudinal axis such that the spacer 518 advances into the recess 702 to its second position, as shown in fig. 11, and fluid passing through each of the plurality of channels 606 can pass the spacer 518 and out of the ejection opening 602. In the second position, the spacer 518 is disposed within the recess 702 such that it does not obstruct any fluid flowing through each of the plurality of channels 606. In the closed state, the shaft 708 is moved along its longitudinal axis in a second direction opposite the first direction such that the attached spacer 518 advances out of the recess 702 to its first position, as shown in fig. 10, and fluid passing through each of the plurality of channels 606 is impeded by the spacer 518. In the first position, the spacer 518 is partially disposed outside of the recess 702 such that it completely blocks fluid flow through each of the plurality of channels 606.

In the illustrated embodiment, each of the plurality of channels 606 extends from the jet opening 602 to the suction opening 604 such that the jet opening 602 communicates with the suction opening 604. In the illustrated embodiment, the material forming each of the plurality of channels 606 is a thermally conductive material (e.g., aluminum). During movement of fluid system 510 in a forward direction (as indicated by arrow 539), fluid flows from suction opening 604 to ejection opening 602 through each of a plurality of channels 606.

In the illustrated embodiment, each of the plurality of fluid pressurizers 528 is disposed within a channel of the plurality of channels 606 and is in communication with the ejection opening 602 and the suction opening 604. Each of the plurality of fluid pressurizers 528 is movable between an off state and an on state and includes a pump 678, a suction port 680, and a discharge port 682. The fluid pressurizer 528, such as the pump 678, may be operably connected to any suitable portion of the device, system, or component on which the fluid system is disposed to provide a mechanism (e.g., one or more switches) for moving the fluid pressurizer 528 between the closed state and the open state. It is believed that the inclusion of multiple fluid pressurizers 528 is advantageous at least because the jets flowing through the channels of the fluid system become more efficient and can be more effectively controlled. For example, in embodiments that include fluidic systems such as system 510 on the wing of an aircraft, the use of only a single fluidic pressurizer reduces the user's ability to create a uniform jet along the span, while the use of multiple fluidic pressurizers allows the user to control the jets produced on separate portions along the span to create a uniform or substantially uniform flow. In embodiments including multiple fluid pressurizers in the fluid system, a user can vary the degree to which fluid passing through the channels is pressurized by manipulating the state of each fluid pressurizer or one or more fluid pressurizers, and the jets created by the fluid system can be manipulated and controlled by the user to adjust the lift, thrust, and/or resistance to control yaw, roll, and pitch.

In the illustrated embodiment, each of the plurality of fluid pressurizers 528 is attached to the first body portion 512 and positioned such that the suction port 680 of each of the plurality of fluid pressurizers 528 extends toward a first portion of a passage of the plurality of passages 606 from the suction opening 604 to the pump 678 (e.g., the suction port 680 toward the suction opening 604) and the discharge port 682 extends toward a second portion of the passage of the plurality of passages 606 from the ejection opening 602 to the pump 678 (e.g., the discharge port 682 toward the ejection opening 602). In the closed state, pump 678 does not draw any fluid through the respective channels of the plurality of channels 606. In the open state, pump 678 draws fluid through intake opening 604, through its respective passageway 606 and pump 678, and pushes fluid out of ejection opening 602.

In the illustrated embodiment, the cells of the plurality of cells 710 are disposed between adjacent ones of the plurality of channels 606 and are attached to the walls defining the channels of the plurality of channels 606 (e.g., to an inside surface, within a recess defined by the walls, to a surface outside the channels). Each of the plurality of batteries 710 is operatively connected to one of the plurality of fluid pressurizers 528 to power the one of the plurality of fluid pressurizers 528. It is believed to be advantageous to position the cells between adjacent ones of the plurality of channels 606, which may increase the efficiency of the cells, and may cool the cells by fluid passing through the channels 606 (e.g., through the walls defining the channels 606). Additionally, it is believed to be advantageous to position the cells between adjacent ones of the plurality of channels 606, such that heat generated by the cells may be absorbed by the walls defining the channels to increase the overall enthalpy (e.g., energy) of the fluid flow through the channels, which will increase the efficiency (e.g., pumping efficiency) of the fluid pressurizer. Additionally, it is believed to be advantageous to position the batteries between adjacent ones of the plurality of channels 606, such that during use (e.g., during flight), heat generated by the batteries may be absorbed by the walls defining the channels and conducted to the outer surfaces of the fluid system 510 and absorbed by the external environment of the fluid system 510.

Each of the plurality of batteries 710 may be attached to the walls defining the channels of the plurality of channels 606 using any suitable attachment technique or method. The selection of a suitable attachment technique or method of attachment between the battery and the walls defining the channel according to a particular embodiment may be based on various considerations, including the material forming the battery and/or the material forming the walls of the channel. Example attachment techniques and methods that are considered suitable include welding, the use of adhesives, mechanical connectors, the use of highly thermally conductive materials, and any other method or technique that is considered suitable for a particular embodiment.

Although the cells of the plurality of cells 710 have been shown as being disposed between adjacent channels of the plurality of channels 606, one or more cells may be positioned at any suitable location on the fluid system. The selection of a suitable location to locate the one or more batteries may be based on various considerations, such as the desired cooling that is intended to be imparted to the one or more batteries. For example, the fluidic system may not include a battery between adjacent channels, may include multiple batteries between adjacent channels, may include a single or multiple batteries disposed adjacent to a channel (e.g., attached to a wall forming a channel), and/or may include a single battery between adjacent channels. Any suitable battery, such as a lithium ion battery, may be included in the fluid system.

Although each of the plurality of batteries 710 has been shown as being operably connected to one of the plurality of fluid pressurizers 528 to power the one of the plurality of fluid pressurizers 528, one or more batteries may be operably connected to any suitable feature, device, and/or system. Selection of suitable features, devices, and/or systems to operatively attach one or more batteries may be based on various considerations, such as the intended use of the fluidic system including the one or more batteries. For example, one or more batteries included in a fluid system may be attached to one or more fluid pressurizers, one or more actuators (such as those described herein), and/or any other features, devices, and/or systems deemed suitable for a particular embodiment.

While a single spacer actuator 704 has been shown to move the spacer 518 between the first and second positions, the fluid system may include any suitable number of actuators, and the selection of the suitable number of actuators included in the fluid system may be based on various considerations, such as the structural arrangement of the spacer included in the fluid system. For example, a plurality of spacer actuators may be operably attached to a single spacer such that movement of the plurality of actuators between the closed state, the open state, and the closed state moves the spacer attached to each of the plurality of actuators between its first and second positions. Alternative embodiments may include a combination of the configuration shown in fig. 8 and 9 and the configuration shown in fig. 10 and 11, such that discrete spacers are disposed along a first portion of the spray opening and a single elongated spacer is disposed along a second portion of the spray opening.

While the spacer 518 has been shown as being disposed within a recess of the plurality of recesses 702 when in its second position such that it does not obstruct any fluid flow through each of the plurality of channels 606, the spacer may have any suitable structural configuration relative to the channels when in its second position. Selection of a suitable structural configuration of the spacer in the first and second positions may be based on various considerations, such as a desired flow through a passage defined by the fluid system. For example, instead of being disposed entirely within a recess defined by the second body portion, the spacer may be partially disposed within the channel when in the second position such that it is partially disposed in the channel and partially obstructs fluid flow through the channel. In an alternative embodiment, the spacer may be movable to a position between its first and second positions, such that the cross-sectional area of the jet slots may vary during use. While the second body portion 514 has been shown as defining a recess 702 with the spacer actuator 704 disposed in the recess 702, alternative embodiments may include a first body portion that is similar in structure to that shown with respect to the second body portion 514, defining a recess sized and configured to receive the actuator and spacer such that the spacer may be moved between a first position and a second position, as described herein.

Although fluid system 510 has been illustrated as including jet openings 602, suction openings 604, and a plurality of channels 606, fluid system may include any suitable number of jet openings, suction openings, and/or channels. The selection of the appropriate number of ejection openings, suction openings, and channels to include in the fluid system may be based on various considerations, including the desired flow through the fluid system. For example, a fluidic system may include: a single ejection opening communicating with the plurality of channels; a single suction opening communicating with the plurality of passages; a plurality of ejection openings communicating with a single channel; a plurality of suction openings communicating with the single passage; a plurality of injection openings each communicating with a separate channel of the plurality of channels; a plurality of suction openings each communicating with a separate channel of the plurality of channels; and/or any other arrangement deemed suitable for a particular embodiment. Alternatively, separate structures may be provided within the channels defined by the fluid system to define multiple ejection openings, multiple suction openings, and/or multiple channels. For example, a plurality of conduits may be disposed in a channel cooperatively defined by the first body portion and the second body portion to define a plurality of injection openings, a plurality of suction openings, and/or a plurality of channels, and one or more fluid pressurizers may be disposed within a conduit of the plurality of conduits.

Fig. 12 illustrates another example fluid system 810. Fluid system 810 is similar to fluid system 510 shown in fig. 10 and 11 and described above, except as described in detail below. The fluid system 810 has a longitudinal axis 811, a chord 813, a first body portion 812, a second body portion 814, a plurality of supports 816, a spacer 818, and a fluid pressurizer 828. In the illustrated embodiment, the fluid system 810 is included on an airfoil 830 of a wing 832 of an aircraft.

In the illustrated embodiment, the first intermediate edge 842 of the first body portion 812 defines the sinusoidal edge 1020 and a portion of the front surface 846 has a wave configuration corresponding to the sinusoidal edge 1020. The sinusoidal edge 1020 is defined along the front surface 846 and between a surface directed away from the leading edge 838 and includes a plurality of peaks 1022 and valleys 1024, which may have any suitable amplitude and frequency, such as those described herein. The peaks 1022 and valleys 1024 are disposed about the same distance from the leading edge 838 of the first body portion 812 (e.g., there may be some variation depending on the angle at which the first intermediate edge 842 is disposed relative to the leading edge 838). This structural arrangement provides a mechanism for enhancing the mixing of the fluid passing through the front surface 846 of the first body portion 812 and the fluid traveling through the second body portion 814.

Sinusoidal edge 1020 may include any suitable amplitude (e.g., peak-to-peak amplitude) and frequency, and selection of a suitable amplitude and frequency according to a particular embodiment may be based on various considerations, including the desired flow characteristics intended to be achieved. Example amplitudes (e.g., peak-to-peak) considered suitable for the first intermediate edge of the first body portion include: an amplitude equal to 1% to 100% of a distance between the first body portion and the second body portion, referenced at the ejection opening with respect to a centerline of fluid flow through the ejection opening; an amplitude substantially equal to 1% to 100% of a distance between the first body portion and the second body portion, centered on a centerline of fluid flow through the ejection opening, at the ejection opening; and an amplitude of about 1% to about 100% of a distance between the first body portion and the second body portion, with the ejection opening centered on a centerline of fluid flow through the ejection opening; and any other amplitude suitable for a particular implementation.

Although the first intermediate edge 842 of the first body portion 812 is shown as defining the sinusoidal edge 1020, the first intermediate edge of the first body portion may define any suitable structural configuration. The selection of a suitable structural configuration for the first intermediate edge definition of the first body portion according to a particular embodiment may be based on a variety of considerations, including the flow characteristics intended to be achieved. Example structural configurations that are considered suitable include curved, wavy, angled, sinusoidal, and any other structural configuration that is considered suitable for a particular embodiment.

Although the first intermediate edge 842 of the first body portion 812 and a portion of the front surface 846 of the first body portion 812 have been illustrated as having a particular structural arrangement, the first body portion of the fluid system can have any suitable structural arrangement. The selection of a suitable structural arrangement of the first body portion according to a particular embodiment may be based on various considerations, including the flow characteristics intended to be achieved. For example, while fig. 12 illustrates a portion of the front surface 846 of the first body portion 812 as having a wave configuration corresponding to the sinusoidal edge 1020, the front surface of the first body portion may define a sinusoidal or wave configuration corresponding to the sinusoidal edge defined by the front surface of the first body portion. An alternative embodiment may include a first intermediate edge defining a sinusoidal edge along a portion of the length of the front surface of the first body portion such that the sinusoidal edge extends into a portion of the front surface and the inner surface of the first body portion. In this alternative embodiment, the peaks are disposed at a first intermediate edge of the first body portion and the valleys are disposed between the first intermediate edge and the leading edge of the first body portion. An alternative embodiment may include a first body portion defining a sinusoidal edge on a first intermediate edge, and the surface may extend from the first intermediate edge to the inner surface such that the edge between the surface and the inner surface does not define a sinusoidal edge (e.g., it is continuous) and is disposed parallel to an imaginary line disposed between a peak and a trough defined by the sinusoidal edge. In this alternative embodiment, the peaks and valleys are disposed at about the same distance from the leading edge of the first body portion (e.g., there may be some variation depending on the angle at which the first intermediate edge is disposed relative to the leading edge). An alternative embodiment may include a first body portion defining a protrusion extending from a main body of the first body portion and defining a sinusoidal edge extending away from a bottom surface of the first body portion. In this alternative embodiment, the peaks and valleys are disposed at about the same distance from the leading edge of the first body portion (e.g., there may be some variation depending on the angle at which the first intermediate edge is disposed relative to the leading edge). Alternative embodiments may omit the first body portion defining the sinusoidal edge and include a spacer, such as spacer 218, defining a sinusoidal edge, such as sinusoidal edge 1020. In these alternative embodiments, the spacer defines a sinusoidal edge on a surface of the spacer facing the first body portion, the sinusoidal edge including a plurality of peaks and valleys that may have any suitable amplitude and frequency, such as those described herein.

Fig. 13 illustrates another example fluid system 1110. The fluid system 1110 is similar to the fluid system 10 shown in fig. 1, 2, 3, 4, 5, and 6 and described above, except as described in detail below. Fluid system 1110 has a longitudinal axis 1111, a chord length 1113, a first body portion 1112, a second body portion 1114, a plurality of supports 1116, a plurality of spacers 1118, a first plate 1120, a second plate 1124, and a fluid pressurizer 1128. In the illustrated embodiment, the fluid system 1110 is included on an airfoil 1130 of a wing 1132 of an aircraft.

In the illustrated embodiment, the first body portion 1112 has a leading edge 1138, a trailing edge 1140, a first intermediate edge 1142, a second intermediate edge 1144, a third intermediate edge 1330, a fourth intermediate edge 1332, a first front surface 1146, a second front surface 1334, a first rear surface 1148, a second rear surface 1336, a bottom surface 1150, and a main body 1152 defining a recess 1154, an inner surface 1156, a first opening 1158, a second opening 1160, a third opening 1162, a fourth opening 1338, a fifth opening 1340, a first diameter passage (pasway) 1342, a second diameter passage 1344, a third diameter passage 1346, and a cavity 1164. In addition, the first and

second body portions

1112, 1114 cooperatively define a first injection opening 1202, a second injection opening 1348, a first suction opening 1204, a second suction opening 1350, and a passage 1206.

A first intermediate edge 1142 is disposed between leading edge 1138 and trailing edge 1140, a second intermediate edge 1144 is disposed between first intermediate edge 1142 and third intermediate edge 1330, third intermediate edge 1330 is disposed between second intermediate edge 1142 and fourth intermediate edge 1332, and fourth intermediate edge 1332 is disposed between third intermediate edge 1330 and trailing edge 1140. The first intermediate edge 1142 defines a portion of the fourth opening 1338. The second intermediate edge 1144 and the third intermediate edge 1330 define a first opening 1158. The fourth intermediate edge 1332 defines a portion of the fifth opening 1340. First forward surface 1146 extends from leading edge 1138 toward trailing edge 1140 to first intermediate edge 1142 and curves away from chord length 1113. Second front surface 1334 extends from fourth opening 1338 to second intermediate edge 1142. First rear surface 1148 extends from third intermediate edge 1330 away from leading edge 1138 to fifth opening 1340 and curves toward chord length 1113. Second trailing surface 1336 extends from fourth intermediate edge 1332 to trailing edge 1140.

First intermediate edge 1142 and fourth opening 1338 cooperatively define first spray opening 1202. Second intermediate edge 1144 and second body portion 1114 cooperatively define a second spray opening 1348. The third intermediate edge 1330 and the second body portion 1114 cooperatively define the first suction opening 1204. The fourth intermediate edge 1332 and the fifth opening 1340 cooperatively define a second suction opening 1350. The first injection opening 1202 is disposed between the leading edge 1138 and the second injection opening 1348. The second injection opening 1348 is disposed between the first injection opening 1202 and the first suction opening 1204. The first suction opening 1204 is disposed between the second ejection opening 1348 and the second suction opening 1350. The second suction opening 1350 is disposed between the first suction opening 1204 and the trailing edge 1140.

The passage 1206 extends from the second ejection opening 1348 to the first suction opening 1204 such that the second ejection opening 1348 communicates with the first suction opening 1204. First passage 1342 extends from first injection opening 1202 to passage 1206 such that first passage 1342 communicates with passage 1206. The secondary passage 1344 extends from the secondary suction opening 1350 to the passage 1206 such that the secondary passage 1344 communicates with the passage 1206. Third passage 1346 extends from passage 1206 to second passage 1344 such that third passage 1346 communicates with passage 1206 and second passage 1344. During movement of the fluid system 1110 in a forward direction (as indicated by arrow 1139), fluid flows from the first and

second suction openings

1204, 1350 through the passages 1206 to the first and

second injection openings

1202, 1348. As shown in fig. 13, the second opening 1160 and cavity 1164 are positioned on the first body portion 1112 such that when the second plate 1124 is in the open configuration and before fluid changes direction of travel along the path of the passage 1206 toward the injection opening 1202, fluid traveling through the first suction opening 1204, into the third passage 1346 and the second passage 1344, and fluid traveling through the second suction opening 1350 and into the passage 1206, is toward the trailing edge 1140 and encounters the second opening 1160 and cavity 1164.

First intermediate edge 1142 is disposed at an angle 1343 to an inner surface of first path 1342. The second intermediate edge 1144 is disposed at an angle 1345 to an inner surface 1156 of the recess 1154. Third intermediate edge 1330 is defined at an angle 1347 to inner surface 1156 of recess 1154. Fourth intermediate edge 1332 is disposed at an angle 1349 to an inner surface 1156 of second pathway 1344. In the illustrated embodiment, each of the

angles

1343, 1345, 1347, and 1349 is less than 90 degrees. Although specific angles have been described, any suitable angle may be used between these features, and selection of a suitable angle may be based on various considerations, such as a desired fluid flow around or through the fluid system. Example angles deemed suitable include angles less than 90 degrees, angles less than 45 degrees, and any other angle deemed suitable for a particular embodiment.

Although the first body portion 1112 has been illustrated as defining a first path 1342, a second path 1344, and a third path 1346, any suitable portion of the fluid system may define the first path, the second path, and the third path. The selection of the appropriate portion of the fluid system to define the first, second, and/or third paths may be based on various considerations, such as a desired fluid flow through the channel defined by the fluid system. For example, the second body portion may define one or all of the first, second and/or third pathways. Alternatively, in embodiments where the first and second body portions are formed as a single element, the first, second and third pathways may be defined by a main body forming the first and second body portions.

Although the fluid system 1110 has been shown as including the passage 1206, the first passage 1342, the second passage 1344, the third passage 1346, the first injection opening 1202, the second injection opening 1348, the first suction opening 1204, and the second suction opening 1350, the fluid system may omit all or some of these features. The selection of an appropriate number of features to omit from the fluid system may be based on various considerations, such as a desired fluid flow through a channel defined by the fluid system. For example, the fluidic system may include a structure defining a channel, a first pathway, a first ejection opening, a second ejection opening, and a first suction opening, such as those described herein. Alternatively, the fluidic system may include a structure defining a channel, a second channel, a first ejection opening, a first suction opening, and a second suction opening, such as those described herein.

Although the fluid system 1110 has been shown as including the first plate 1120, the first actuator 1122, the second plate 1124, the second actuator 1126, the second opening 1160, the third opening 1162, the cavity 1164, and the third channel 1346, the fluid system may omit all or some of these features. The selection of an appropriate number of features to omit from the fluid system may be based on various considerations, such as a desired fluid flow through a channel defined by the fluid system. For example, the fluidic system may omit the first plate, the first actuator, the second plate, the second actuator, the second opening, the third opening, the cavity, and the third channel, such that it includes the first ejection opening, the second ejection opening, the first suction opening, the second suction opening, and the channel.

Fig. 14 and 15 illustrate another example fluid system 1410. The fluid system 1410 is similar to the fluid system 10 shown in fig. 1, 2, 3, 4, 5, and 6 and described above, except as described in detail below. The fluid system 1410 has a longitudinal axis 1411, a chord length 1413, a first body portion 1412, a second body portion 1414, a plurality of supports 1416, spacers 1418, and a fluid pressurizer 1428. In the illustrated embodiment, the fluid system 1410 is included on an airfoil 1430 of a wing 1432 of an aircraft.

In the illustrated embodiment, the fluid system 1410 includes a fluid regulator 1760 disposed within the channel 1506 and movable between a first position, as shown in fig. 14, and a second position, as shown in fig. 15. In the first position, the fluid regulator 1760 prevents fluid flow through the channel 1506. In the second position, the fluid regulator 1760 allows fluid to pass through the channel 1506. The fluid regulators included in the fluid system may include any suitable fluid regulator, and selection of a suitable fluid regulator may be based on various considerations, such as the structural arrangement of the first body portion, the second body portion, or the channel cooperatively defined by the first body portion and the second body portion. Examples of fluid regulators considered suitable for inclusion in a fluid system include: an electric motor including an attachment structure (e.g., a semi-cylinder) that moves between a first position and a second position to regulate fluid flow through the passage; an adjuster that produces rotational motion about a longitudinal axis of the attachment shaft and includes an attachment structure (e.g., a semi-cylinder) that moves between a first position and a second position to adjust fluid flow through the channel; an adjuster to produce axial movement of the shaft along a longitudinal axis of the shaft, the adjuster including an attachment structure (e.g., a semi-cylinder) that moves between a first position and a second position to adjust fluid flow through the passage; as well as any other regulator deemed suitable for a particular embodiment. In the illustrated embodiment, the fluid regulator 1760 is an electric motor 1762 having a shaft 1764 and a body 1766 attached to the shaft 1764 defining a semi-cylinder 1768.

The fluid regulator 1760 is capable of being moved between a closed state, in which the fluid regulator 1760 is positioned in a first position or a second position, and an open state, in which any structure attached to the fluid regulator 1760 is moved relative to the channel 1506. The motor 1762 may be operatively connected to any suitable portion of a device, system or component on which the fluid system is disposed to provide power to the fluid regulator 1760 (e.g., a battery, an electric motor), as well as to provide a mechanism (e.g., one or more switches) for moving the fluid regulator 1760 between the closed state and the open state.

Fluid flow through the channel 1506 is regulated based on the position of the fluid regulator 1760. For example, when the fluid regulator 1760 is in a closed state and in a first position as shown in FIG. 14, no fluid or a minimal amount of fluid will pass through the channel 1506. When the fluid regulator 1760 is in a closed state and in a second position as shown in fig. 15, fluid may pass through the channel 1506 and past the fluid regulator 1760. When the fluid regulator 1760 is in the open state, fluid will flow through the channel 1506 in a pulsatile manner based on the movement of the half-cylinder 1768 within the channel 1506 between the first and second positions (as shown in fig. 14 and 15). The pulsating flow will be based on the revolutions per minute that moves the attachment structure, semi-cylinder 1768, relative to channel 1506, and the revolutions per minute may be set to a particular value or may vary depending on the desired fluid flow through channel 1506 and out of spray opening 1502. Pulsating flow is believed to be advantageous because it provides a mechanism for manipulating the flow of fluid exiting jet openings 1502 above top surface 1484 of second body portion 1414. The optimum pulse frequency and duty cycle will be based on the flow conditions and airfoil geometry.

While the semi-cylinder 1768 has been shown attached to the motor 1762, any suitable structure may be included on the fluid regulator to achieve the pulsating flow described herein. Selection of suitable structure for inclusion on the fluid regulator may be based on various considerations, such as the structural arrangement of the first body portion, the second body portion, or the channel cooperatively defined by the first body portion and the second body portion. Examples of structures deemed suitable for inclusion on a fluid regulator to achieve the pulsating flow described herein include a semi-cylinder, one or more blades, fan blades, elongated members, curved members, a door that moves between a first position and a second position (e.g., via an oscillating gear system) to open and close a passageway, and any other structure deemed suitable for a particular embodiment. Alternatively, pulsating flow may be achieved using any of the movable spacers described herein. For example, a spacer attached to the actuator may be moved between its first and second positions to create a pulsating flow out of the ejection opening. The pulsating flow will be based on the number of times per minute the spacer is moved between the first and second positions within the channel, which may be set to a specific value or may vary depending on the desired fluid flow through the channel and out of the ejection opening. In these embodiments, a spacer actuator may be used to manipulate the pulsating fluid flow.

Any of the spacer configurations and associated structures illustrated herein that provide for movement of one or more spacers may be included in any of the example embodiments illustrated and described herein and may be located at any suitable location on the fluid system, and selection of a suitable spacer configuration, associated structure, and suitable location to position one or more spacers on the fluid system may be based on various considerations, such as a desired fluid flow through a channel defined by the fluid system. For example, any of the spacer configurations and associated structures shown herein that provide for movement of one or more spacers can be provided at a suction opening on a fluid system in conjunction with or in addition to any of the spacer configurations and associated structures that provide for movement of one or more spacers at a jet opening.

Although the example fluid systems described herein have been illustrated as being included on a wing of an aircraft having a constant chord length and no sweep angle, fluid systems such as those described herein may be included in any suitable structures, devices, and/or systems. Selection of a suitable structure, device, and/or system including a fluidic system may be based on various considerations, such as the intended use of the structure, device, and/or system. Examples of structures, devices, and/or systems that are believed to be suitable for inclusion of fluidic systems, such as those described herein, include: an aircraft; an unmanned reconnaissance aircraft; small personal aircraft; a commercial flight; a wing of an aircraft; wings of an aircraft with varying chord lengths and/or sweep angles; a wing of a tapered aircraft; a space ship; a space exploration vehicle; exploring the aircraft; an aircraft; a helicopter; a rotorcraft rotor blade; a vehicle; a motor vehicle; an automobile; a truck; a motorcycle; a vessel; a locomotive; a projectile; a turbine; a wind turbine; a blade of a wind turbine; a gas turbine engine; a gas turbine engine compressor and/or fan; a pump; a propeller; a blade; a sail; any structure, device, and/or system that uses airfoils; a land vehicle; a marine vehicle; an aerial vehicle; any structure, device, and/or system for generating lift and/or thrust; as well as any other structures, devices, and/or systems that are deemed suitable. For example, the fluid system described herein may be advantageously used for exploration tasks for other stars, such as flying in the mars atmosphere. This is believed to be advantageous due at least to reduced energy consumption, enhanced lift, reduced drag, generated thrust, increased cruise aerodynamic efficiency, enhanced maneuverability and safety, and reduced take-off/landing distances required for structures, devices and/or systems including fluid systems such as those described herein.

Any of the embodiments of the fluid systems described herein, as well as any features described with respect to a particular embodiment of the fluid system, may be included along a portion or all of the full length (span) of an airfoil, blade, or other feature of a device, system, component (e.g., a vehicle) in which it is desired to include the fluid system. For example, the first opening, the second opening, the third opening, the fourth opening, the fifth opening, the cavity, the first rail, the second rail, the first plate, the second plate, the first jet opening, the second jet opening, the first suction opening, the second suction opening, the channel, the first path, the second path, the third path, and/or the fluid regulator of the fluid system may extend along a portion or all of the entire length of the airfoil, vane, or other feature in which the fluid system is desired to be included. Alternatively, the fluidic system may comprise a plurality of discrete combinations of features and elements comprising structures similar to the first opening, second opening, third opening, fourth opening, fifth opening, cavity, first rail, second rail, first plate, second plate, first jet opening, second jet opening, first suction opening, second suction opening, channel, first pathway, second pathway, third pathway, and/or fluidic regulator described herein. For example, each discrete combination of a first opening, a second opening, a third opening, a fourth opening, a fifth opening, a cavity, a first track, a second track, a first plate, a second plate, a first jet opening, a second jet opening, a first suction opening, a second suction opening, a channel, a first pathway, a second pathway, a third pathway, and/or a fluid regulator described herein can be in communication with a separate fluid pressurizer (e.g., a pump) and can be individually operated by a user of the fluid system (e.g., using a switch).

Fig. 16, 17, 18, and 19 illustrate a first example rotatable wing system 1610. Rotatable wing system 1610 includes a fuselage 1612, a wing box 1614, a first wing 1616, and a second wing 1618.

The body 1612 has a front end 1624, a rear end 1626, and a main body 1628 defining a recess 1630, a recess base 1631, a first slot 1632, a second slot 1634, a body chamber 1636, a first rail 1638, and a second rail 1640. A recess 1630 is disposed between front end 1624 and rear end 1626 and extends from a top surface of fuselage 1612 into body 1628 of fuselage 1612. In the illustrated embodiment, the recess 1630 defines a partial cylinder. However, alternative embodiments may define any suitable structural arrangement, such as partial ellipsoids, full cylinders, full ellipsoids, and any other configuration deemed suitable for a particular embodiment. As best shown in fig. 19, each of the first and

second slots

1632, 1634 is disposed within the recess 1632 and provides access to the body cavity 1636. Each of the first and

second notches

1632, 1634 is sized and configured to receive a portion of the attachment rail 1646, as described in more detail herein. In the illustrated embodiment, the fuselage chamber 1636 is an enclosed space separate from other portions of the fuselage (e.g., passenger cabin, storage compartment). However, alternative embodiments may include fuselage chambers that are not separate from other chambers of the fuselage. As best shown in fig. 19, each of the first rail 1638 and the second rail 1640 are disposed within the fuselage chamber 1636, extend along the recess base 1631, and are sized and configured to interact with a plurality of wheels 1652 of an attachment rail 1646, as described in more detail herein.

Wing box 1614 has a body 1644 and is rotatably attached to fuselage 1612 by attachment rails 1646. In the illustrated embodiment, the wing box 1614 defines a partial cylinder configured as a mirror image of the recess 1630, and is sized and configured to be partially disposed within the recess 1630. However, alternative embodiments may include wing boxes that are not mirror images of the configuration of the concavity defined by the fuselage and/or wing boxes that define partial ellipsoids, full cylinders, full ellipsoids, and any other configuration deemed suitable for a particular embodiment. Body 1644 is attached to each of first wing 1616 and second wing 1618, and may include any suitable structure (e.g., one or more spars) that attaches

wings

1616, 1618 to a wing box. The attachment rail 1646 has a plurality of attachment bars 1648, a plurality of shafts 1650, and a plurality of wheels 1652. A first set of the plurality of rods 1648 extends through first slot 1632 and a second set of the plurality of rods 1648 extends through second slot 1634. Each of the plurality of rods 1648 has a first end attached to the wing box 1614 and a second end attached to one of the plurality of shafts 1652. A first wheel and a second wheel of the plurality of wheels 1652 are rotatably disposed on each of the plurality of shafts 1650. The first wheel is in contact with the first rail 1638 and the second wheel is in contact with the second rail 1640. This structural arrangement provides a mechanism for rotating each of wing box 1614, first wing 1616, and second wing 1618 relative to fuselage 1612. Optionally, the rotatable wing system may comprise one or more mechanisms (e.g. a zigzag seal, a labyrinth seal) for sealing a seam between the fuselage and the wing box.

In the illustrated embodiment, movement of wing box 1614 and attached

wings

1616, 1618 in a clockwise direction (as shown by arrow 1613 in fig. 18) increases the angle of attack without rotating fuselage 1612, and movement of wing box 1614 and attached

wings

1616, 1618 in a counterclockwise direction, opposite arrow 1613, decreases the angle of attack without rotating fuselage 1612 and allows the aircraft to slow. Rotatable wing system 1610 is believed to be advantageous at least because it provides a mechanism for rotating wing box 1614 and attached

wings

1616, 1618 to any suitable angle relative to fuselage 1612. For example, the wing box and attached wing or wings may be rotated about 0 degrees to about 90 degrees relative to the longitudinal axis of the fuselage, about 0 degrees to about 180 degrees relative to the longitudinal axis of the fuselage, about 0 degrees to about 270 degrees relative to the longitudinal axis of the fuselage, about 0 degrees to about 360 degrees relative to the longitudinal axis of the fuselage, less than 45 degrees, about 90 degrees, about-90 degrees, and any other angle of movement deemed suitable for a particular embodiment.

Movement of the attachment rail 1646 relative to the fuselage 1612 may be accomplished using any suitable technique or method of effecting movement, and selection of a suitable technique or method may be based on various considerations, such as the materials forming the rotatable wing system. Examples of techniques and methods to effect movement of an attachment rail relative to a fuselage include: attaching a motor that can be activated using one or more switches to an attachment rail; attaching more than one motor to the attachment rail that may be enabled using one or more switches; attaching a motor, which may be activated using one or more switches, to each wheel or a set of wheels of the attachment track; as well as any other techniques or methods that are deemed suitable for the particular implementation.

Although movement of the wing box relative to the fuselage has been shown as being accomplished using rails, axles, and wheels, any suitable system, device, and/or feature may be included on the rotatable wing system to accomplish movement of the wing box relative to the fuselage. Selection of suitable systems, devices, and/or features for inclusion in the rotatable wing system may be based on various considerations, including the intended use of the aircraft. For example, an alternative embodiment may include an electromagnet that can produce magnetic levitation.

Fuselage 1612, wing box 1614, first wing 1616, second wing 1618, and attachment rails 1646 may be formed from any suitable material and may be manufactured using any suitable technique or method. The selection of suitable materials for forming the fuselage, wing box, first wing, second wing, and attachment rails, and the selection of suitable techniques or methods for manufacturing the fuselage, wing box, first wing, second wing, and attachment rails, may be based on a variety of considerations, including the intended use of the system. Examples of materials considered suitable for forming the fuselage, wing box, first wing, second wing, and attachment rails include conventional materials, metals, steels, alloys, plastics, combinations of metals and plastics, composites, and any other materials considered suitable for a particular embodiment. Example techniques and technologies considered suitable for manufacturing the fuselage, wing box, first wing, second wing, and attachment rails include conventional methods and technologies, injection molding, machining, 3D printing, and/or any other method or technology considered suitable for a particular embodiment.

While rotatable wing system 1610 has been illustrated as including first wing 1616 and second wing 1618, and attachment rail 1646 has been illustrated as including a plurality of attachment bars 1648, a plurality of shafts 1650, and a plurality of wheels 1652, rotatable wing system may include any suitable number of wings, and attachment rails may include any suitable number of bars, shafts, and/or wheels. The selection of the appropriate number of wings to include in the rotatable wing system and the selection of the appropriate number of rods, shafts and wheels to include in the attachment track may be based on various considerations, including the intended use of the aircraft. Examples of the number of wings, rods, shafts and wheels considered suitable for inclusion in a rotatable wing system include one, at least one, two, multiple, three, four, five, six, more than six and any other number considered suitable for a particular embodiment.

Fig. 20 illustrates a second example rotatable wing system 1710. Rotatable wing system 1710 is similar to rotatable wing system 1610 shown in fig. 16, 17, 18, and 19 and described above, except as described in detail below. Rotatable wing system 1710 includes fuselage 1712, wing box 1714, and first wing 1716.

In the illustrated embodiment, a recess 1730 is disposed between front end 1724 and rear end 1726 and extends from a bottom surface of fuselage 1712 into body 1728 of fuselage 1712. In the illustrated embodiment, the recess 1730 and wing box 1714 define a partial ellipsoid.

Fig. 21 illustrates a third example rotatable wing system 1810. The rotatable wing system 1810 is similar to the rotatable wing system 1610 shown in fig. 16, 17, 18, and 19 and described above, except as described in detail below. The rotatable wing system 1810 includes a fuselage 1812, a wing box 1814, and a first wing 1816.

In the illustrated embodiment, fuselage 1812 defines a path 1830 extending through fuselage 1812 and disposed between forward end 1824 and aft end 1826. A path 1830 extends from a first side of fuselage 1812 into body 1828 of fuselage 1812 to a second side of fuselage 1812. In the illustrated embodiment, the recess 1830 defines a cylindrical structure within which the wing box 1814 is disposed and rotatably attached. In this embodiment, the slots and rails (not shown) extend around the entire circumference of the path 1830 so that the airfoil 1816 can rotate 360 degrees.

Any of the rotatable wing systems described herein (e.g., rotatable wing system 1610, rotatable wing system 1710, rotatable wing system 1810) may include one or more wings that include a fluidic system, such as fluidic system 10, fluidic system 210, fluidic system 510, fluidic system 810, fluidic system 1110, fluidic system 1410, variations of the fluidic systems described herein, and any other fluidic system deemed suitable for a particular embodiment.

It is believed that the inclusion of a rotatable wing system, such as those described herein, on an aircraft is advantageous at least because it allows the wings of the aircraft to rotate and enable takeoff and/or landing without rotating the entire aircraft body. In addition, the rotatable wing systems described herein allow one or more wings of any aircraft to rotate relative to the fuselage by any suitable number of degrees during takeoff, flight, and/or landing to maximize efficiency.

It will be appreciated by those of ordinary skill in the art that various modifications and alternatives to the embodiments described and illustrated may be developed in light of the overall teachings of the disclosure. Accordingly, the particular arrangements disclosed are meant to be illustrative only and not limiting as to the scope of the invention which is to be given the full breadth of the claims appended and any and all equivalents thereof.

Claims

1. A fluid system comprising a first body portion having a leading edge, a trailing edge, a first intermediate edge, a second intermediate edge, a front surface, a rear surface, a bottom surface, and a main body,

the body of the first body portion defining a recess, an inner surface, a recess base, a first opening, a second opening, a third opening, and a cavity, the first intermediate edge disposed between the leading edge and the second intermediate edge, the second intermediate edge disposed between the first intermediate edge and the trailing edge, the leading surface extending from the leading edge to the first intermediate edge, the trailing surface extending from the trailing edge to the second intermediate edge, the bottom surface extending from the leading edge to the trailing edge, the recess extending from the first opening into the body of the first body portion up to the recess base and forming the inner surface, the first opening extending from the first intermediate edge to the second intermediate edge, the second opening defined on the inner surface and providing access to the cavity, the third opening is defined on the bottom surface and provides access to the cavity;

the fluid system further comprises:

a second body portion disposed within the recess defined by the main body of the first body portion, the first and second body portions cooperatively defining an ejection opening, an intake opening, and a passage extending from the ejection opening to the intake opening, the passage having a first portion extending from the intake opening toward the ejection opening and a second portion extending from the ejection opening toward the intake opening;

a spacer disposed within the channel cooperatively defined by the first body portion and the second body portion, the spacer partially obstructing fluid flow through the channel;

a fluid pressurizer disposed within the passageway cooperatively defined by the first body portion and the second body portion and having a suction port toward the first portion of the passageway and a discharge port toward the second portion of the passageway;

a first plate movably attached to the first body portion and movable between an open configuration enabling fluid flow through the third opening and a closed configuration preventing fluid flow through the third opening;

a first actuator operably attached to the first panel and configured to move the first panel between the open configuration and the closed configuration;

a second plate movably attached to the first body portion and movable between an open configuration enabling fluid flow through the second opening and a closed configuration preventing fluid flow through the second opening; and

a second actuator operably attached to the second panel and configured to move the second panel between the open configuration and the closed configuration;

wherein the second opening provides a passageway between the channel and the cavity; and is

Wherein the third opening provides access between the cavity and an environment external to the first body portion.

2. The fluid system of claim 1, wherein the second body portion is partially disposed within the recess defined by the main body of the first body portion.

3. The fluid system of claim 1, wherein the spacer extends from the second body portion to the first body portion.

4. The fluid system of claim 1, wherein the spacer is movable between a first position in which a first volume of the spacer is disposed within the passage and partially obstructs fluid flow through the passage, and a second position in which a second volume of the spacer is disposed within the passage, the first volume being greater than the second volume.

5. The fluid system of claim 4, wherein the second body portion defines a recess sized and configured to receive the spacer; and is

Wherein, in the second position, the spacer is disposed entirely within the recess defined by the second body portion.

6. The fluid system of claim 1, wherein the spacer is formed from the same material as the first body portion and the second body portion.

7. The fluid system of claim 1, wherein the spacer comprises a plurality of spacers disposed within the channel cooperatively defined by the first and second body portions.

8. The fluid system of claim 7, wherein each spacer of the plurality of spacers is movable between a first position in which a first volume of each spacer of the plurality of spacers is disposed within the channel and partially obstructs fluid flow through the channel, and a second position in which a second volume of each spacer of the plurality of spacers is disposed within the channel, the first volume being greater than the second volume.

9. The fluid system of claim 1, wherein the fluid pressurizer comprises a plurality of fluid pressurizers disposed within the channel, each of the plurality of fluid pressurizers having a suction port toward the first portion of the channel and a discharge port toward the second portion of the channel.

10. The fluid system of claim 1, further comprising a fluid regulator disposed within the channel, the fluid regulator moving between a first position preventing fluid flow through the channel and a second position allowing fluid travel through the channel.

11. The fluid system of claim 1, wherein the first intermediate edge defines a sinusoidal edge.

12. The fluid system of claim 1, wherein the first body portion and the second body portion cooperatively define a wing of an aircraft.

13. A fluid system comprising a first body portion having a leading edge, a trailing edge, a first intermediate edge, a second intermediate edge, a front surface, a rear surface, a bottom surface, and a main body,

the fluid system further comprises:

a second body portion disposed partially within the recess defined by the main body of the first body portion, the first and second body portions cooperatively defining an ejection opening, an intake opening, and a passage extending from the ejection opening to the intake opening, the passage having a first portion extending from the intake opening toward the ejection opening and a second portion extending from the ejection opening toward the intake opening;

a spacer disposed within the channel cooperatively defined by the first and second body portions, the spacer being movable between a first position in which a first volume of the spacer is disposed within the channel and partially obstructs fluid flow through the channel and a second position in which a second volume of the spacer is disposed within the channel, the first volume being greater than the second volume;

14. The fluid system of claim 13, wherein the second body portion defines a recess sized and configured to receive the spacer; and is

15. The fluid system of claim 13, wherein the spacer is formed from the same material as the first body portion and the second body portion.

16. The fluid system of claim 13, wherein the spacer comprises a plurality of spacers disposed within the channel cooperatively defined by the first and second body portions, each spacer of the plurality of spacers being movable between a first position in which a first volume of each spacer of the plurality of spacers is disposed within the channel and partially obstructs fluid flow through the channel and a second position in which a second volume of each spacer of the plurality of spacers is disposed within the channel, the first volume being greater than the second volume.

17. The fluid system of claim 13, wherein the fluid pressurizer comprises a plurality of fluid pressurizers disposed within the channel, each of the plurality of fluid pressurizers having a suction port toward the first portion of the channel and a discharge port toward the second portion of the channel.

18. The fluid system of claim 13, further comprising a fluid regulator disposed within the channel, the fluid regulator moving between a first position preventing fluid flow through the channel and a second position allowing fluid travel through the channel.

19. The fluid system of claim 13, wherein the first intermediate edge defines a sinusoidal edge.

20. A fluid system comprising a first body portion having a leading edge, a trailing edge, a first intermediate edge, a second intermediate edge, a front surface, a rear surface, a bottom surface, and a main body,

the fluid system further comprises:

a second body portion disposed partially within the recess defined by the main body of the first body portion, the second body portion having a main body defining a recess, the first and second body portions cooperatively defining an airfoil of an aircraft, an ejection opening, an intake opening, and a passage extending from the ejection opening to the intake opening, the passage having a first portion extending from the intake opening toward the ejection opening and a second portion extending from the ejection opening toward the intake opening;

a spacer disposed within the channel cooperatively defined by the first body portion and the second body portion, the spacer sized and configured to be received by the recess defined by the second body portion and movable between a first position in which the spacer extends from the second body portion to the first body portion and a first volume of the spacer is disposed within the channel partially obstructing fluid flow through the channel and a second position in which the spacer is fully disposed within the recess defined by the second body portion and a second volume of the spacer is disposed within the channel, the first volume being greater than the second volume;