CN106179791A - Adaptive switched strengthening Exciting-simulator system fluidic oscillator - Google Patents
Adaptive switched strengthening Exciting-simulator system fluidic oscillator Download PDFInfo
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- CN106179791A CN106179791A CN201610802088.8A CN201610802088A CN106179791A CN 106179791 A CN106179791 A CN 106179791A CN 201610802088 A CN201610802088 A CN 201610802088A CN 106179791 A CN106179791 A CN 106179791A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
- B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention belongs to jet and fluid flow control technique field, relate to a kind of adaptive switched strengthening Exciting-simulator system fluidic oscillator.This adaptive switched strengthening Exciting-simulator system fluidic oscillator, remains self-excited oscillation device advantage simply and easily, is not required to additionaling power and can complete the automatic switchover of both sides stimulus stream.But it controls the stimulus stream imported voluntarily, is the most no longer the shunting of power stream, but with the high stagnation pressure fluid of power stream homology.So can strengthen excitation, make vibration the most all be prone to occur；And import the stimulus stream in vibration chamber, can accelerate by from height stagnation pressure self-expansion, not consume power stream kinetic energy, thus the efficiency of fluidic oscillation can be greatly improved, the application of fluidic oscillation can be widened.
Description
Technical field
The invention belongs to jet and fluid flow control technique field, relate to a kind of adaptive switched strengthening Exciting-simulator system fluidic oscillation
Device.
Background technology
Along with society and the development of the productivity, demand simple, high efficiency fluid equipment is got more and more, many novel streams
Body equipment arises at the historic moment.In the middle of this, control pressurized fluid and produce vibration or the device of pulsing jet, have much important use
On the way, as strongly crushing, cut, cleaning purging, enhancing mass and heat transfer, mixing, gas exposure, spray etc..For compressible fluid,
There is fluidic oscillation flow meter, control boundary layer separation, the vibration interference unit of raising airfoil lift, and Character of The Static Gas Wave Refrigerator
Oscillating jet allotter etc..
Utilize attached wall (koanda) effect of jet, then jet both sides are applied periodic exciting force, just can make jet
Constantly switch attached wall to the both sides of runner, form oscillating jet.Split with the shunting of blunt pointed shape, by power stream expanded channel therefrom
Fork is split separately, forms two or the branch flow passage of a plurality of separate fan-shaped arrangement in a certain angle, then power stream will be in turn
Enter each bar branch flow passage, each branch flow passage all becomes pulsing jet.Character of The Static Gas Wave Refrigerator is just dependent on this
Plant the oscillation pulsed water jet swung, in each adopter that distribution gas to sector is arranged, then by gas piston effect, produce pressure
Contracting ripple output energy, and produce dilatational wave refrigeration.
For to use the acting of produced oscillating jet or other occasions effectively applied, power stream is converted into and shakes
The energy swinging jet keeps efficiency, is special concern.But regrettably, traditional dependence power stream shunt feedback is self-energizing
Agitator, either positive feedback formula, sympathetic response formula or acoustic wave etc., due to flow resistance or the generation shock wave of flow manifold, make
Again be back to vibrate chamber autoexcitation stream stagnation pressure, than power stream can substantially reduce.So producing two kinds of bad fruits, one is excitation
The reduced capability of vibration, needs substantial amounts of power stream shunt volume.Nonetheless, vibration can not be excited in the case of many, as
The jet inertia of high pressure high density is big, needs the biggest stimulus stream motive force that it just can be made to deflect, and autoexcitation ability often reaches not
Arrive, or it is shimmy to produce moment the most by a small margin；Two is this considerable amount of shunting, after returning to vibration chamber, again longitudinally adds
The speed of speed flowing, full dependence power stream volume inhales the momentum-exchange carried under one's arms, the same just as ejector.This process power stream loses
Kinetic energy roll up the difference of two squares of flow velocity before and after suction to it and be directly proportional, this numerical value is the biggest, therefore the energy of self-excited oscillation device
Utilizing index stagnation pressure conservation rate to only have 60～75%, the energy of quite a lot of power stream is consumed forfeiture in vain.
Chinese patent ZL201410087495.6 and ZL201410341458.3 propose by with power stream homology same parameter
Fluid introduces agitator as stimulus stream after impulse modulation, directly enhances the stagnation pressure of stimulus stream, greatly strengthen exciting
Ability.And stimulus stream more longitudinally can be accelerated by the high stagnation pressure self-expanding of self, does not consume the kinetic energy of power stream, stimulus stream is many
Remaining energy can also add power stream to and improve the separation loss reducing boundary layer flow, jet total pressure conservation rate up to 85～
95%.But common source excitation stream is before importing vibration chamber, needs to generate two strands anti-phase one with the commutation of mechanically or electrically magnet valve and open one
The stream of pulses closed, drives switching valve to be also required to extra power set, implements certain trouble.
Additionally, the stimulus stream runner axis of existing fluidic oscillator is all arranged with agitator axis perpendicular, to obtain
Obtain motive force greatly.But due to the initial excitation stage, power stream always bends to the excitation mouth attached wall here taken turns at that time,
The velocity of stimulus stream has along the reciprocal component of primary jet velocity vector, and i.e. two plumes have some reversed hedges, this meeting
Consume the kinetic energy of the two simultaneously, make loss increase.
Summary of the invention
The present invention provides a kind of and only relies on the change that agitator self outlet jet pressure is occurred, and that draws outside just controlling is same
Source forcing stream alternately enters the adaptive switched strengthening Exciting-simulator system fluidic oscillator of vibration chamber left and right side, and it can keep self-excited oscillation
The advantage of device: realize the automatic switchover of both sides stimulus stream, without additionally applying power set.But it controls importing voluntarily
Stimulus stream, is the most no longer the shunting of power stream, but is replaced by the fluid with high stagnation pressure with power stream homology.So
One, one is that by strengthening excitation i.e. excitation density increases, and makes vibration the most all be prone to occur；Two are introduced into
The stimulus stream in vibration chamber, can longitudinally accelerate by the high stagnation pressure self-expansion of self, not consume power stream kinetic energy, make jet energy
Amount is fully kept, and the stagnation pressure conservation rate of jet also can reach the level of 85～95%.
Technical scheme:
Adaptive switched strengthening Exciting-simulator system fluidic oscillator, including a power stream entrance, the outlet of two or more branch flow passage
With two stimulus stream entrances being communicated to vibration chamber sidewall opening；The source of the gas identical with power stream be first communicated to one by left,
The little cylinder of right disjunctor and the adaptive switched reversal valve of intermediate piston composition, import on the upside of the middle part of reversal valve cylinder length
Gas, extends radially through hole by piston, is communicated to two stimulus streams outlets on the downside of cylinder one of them, two stimulus streams
Outlet is then respectively communicated with two stimulus stream entrances of agitator vibration both sides, chamber sidewall.
Import on the upside of cylinder comes gas specifically can be communicated to which stimulus stream outlet of downside, by the axial location of piston
Determining, piston moves to left, and connects left outlet, moves to right, and connects right outlet.And the position of piston is by agitator outermost Liang Tiao branch
Pressure difference value in runner is determined: with two conduits by two pressure tappings of two lateral branches runners and left and right little cylinder
Two driving gas entrances intersection connections on outer face, when left-external side branch flow passage has pulsing jet to flow, its pressure is inevitable
More than right lateral branches runner, owing to being to intersect connection to import to left and right little cylinder, so time right cylinder pressure more than a left side
Side, pressure reduction makes piston be moved to the left, and stimulus stream just can flow out in the left stimulus stream outlet on the downside of cylinder, then connection enters agitator
Stimulus stream entrance on the left of vibration chamber, promotes the switching of power stream wall to the right, outer branch flow passage on the right side of inflow.Outside this rear right
The pressure of branch flow passage raises again, and the pressure of left-external side branch flow passage declines, and pressure reduction makes again piston move right, stimulus stream change from
On the downside of cylinder, right excitation mouth flows out, then enters vibration chamber from right side stimulus stream entrance, promotes the switching of power stream wall the most to the left, week
And renew, form vibration.
The quality of regulating piston and catheter length and air-capacitor, just can control the cycle i.e. frequency of oscillation of the attached wall of above-mentioned switching.
For eliminating the reversed hedge phenomenon that existing fluidic oscillator generally exists, the present invention adaptive switched strengthening Exciting-simulator system jet
Agitator, by stimulus stream runner axis by original vertical, changes into tilting certain angle to the i.e. Way out in power stream downstream.
The invention has the beneficial effects as follows:
The adaptive switched strengthening Exciting-simulator system fluidic oscillator of the present invention, it can be simple and convenient as self-excited oscillation,
Can easily shake as external excitation vibration again, the biggest shimmy angle of big amplitude can be obtained.And particularly superiority is to be greatly improved to penetrate
The efficiency of stream vibration, reduces energy loss, can widen the application of fluidic oscillation.
For being difficult to the high pressure high density big inertia jet being deflected, owing to pressure same in branch flow passage is relative to increasing degree
Percentage ratio, just can cause pressure reduction at double between branch flow passage, increases the power promoting piston to move, makes adaptive switched relatively reliable.
Therefore, the invention is particularly suited to that pressure is higher, the occasion of the unable realization of self-excited oscillation.
Owing to reversal valve piston promotes by two ends pressure reduction, therefore without arranging drive rod or axle through cylinder end piece with outer
Boundary connects.Therefore without revealing, it is not required that external seal, reversal valve is the most easily made, numerous and diverse unlike external excitation reversing arrangement.
The transformation that excitation flows into vibration chamber angle that the present invention adds, has thoroughly stopped between stimulus stream and power stream
Against rushing phenomenon, and stimulus stream can also have initial longitudinal velocity, alleviates and the collision at power stream edge, the most more improves
The energy efficiency of fluidic oscillation.
Accompanying drawing explanation
Fig. 1 is that a kind of of the present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator main body implements structural front view.
Fig. 2 is the connection of the present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator basic structure with reversal valve and each interface
Graph of a relation.
Fig. 3 is the profile diagram of each runner on the present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator body plate.
In figure: 1 body plate；2 pressed gas entrances；3 left stimulus stream entrances；4 right stimulus stream entrances；
5 upper cover plates；6 left-external side branch flow passage pressure tappings；7 right lateral branches runner pressure tappings；8 bases；
9 left and right little cylinders；10 pistons；11 carry out gas entrance；12 extend radially through hole；13 right driving gas entrances；
14 right stimulus stream outlets；15 left stimulus stream outlets；16 left driving gas entrances；17 air inlet cushion chambers；
18 jet nozzle runners；19 vibration chambeies；20 right stimulus stream runners；21 right lateral branches runners；
Branch flow passage is distinguished in 22；23 left-external side branch flow passage；24 left stimulus stream runners.
Detailed description of the invention
Below in conjunction with accompanying drawing and technical scheme, further illustrate the detailed description of the invention of the present invention.
A kind of typical embodiment of the present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator is described as follows, but not only office
It is limited to this kind of embodiment:
The present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator, by agitator main body and adaptive switched reversal valve two parts institute group
Becoming, main part includes body plate 1, upper cover plate 5 and base 8 etc.；Upper cover plate 5 offers pressed gas entrance 2, Zuo Ji
Encourage inflow entrance 3, right stimulus stream entrance 4, left-external side branch flow passage pressure tappings 6 and right lateral branches runner pressure tappings 7；At body plate
Process on 1 certain depth, maximum can be the air inlet cushion chamber 17 of body plate through thickness, jet nozzle runner 18, vibration chamber
19, right stimulus stream runner 20, the middle differentiation branch flow passage 22 of the fan-shaped arrangement of right lateral branches runner 21,0 to 8, left-external side branch
Runner 23 and left stimulus stream runner 24；Adaptive switched reversal valve is by 10 groups of the piston of the left and right little cylinder 9 of one with movement placed in the middle
Become；The two end cap of left and right little cylinder 9 is respectively equipped with left driving gas entrance 16 and right driving gas entrance 13, hands over 2 conduits
Fork is connected with right lateral branches runner pressure tappings 7 and the left-external side branch flow passage pressure tappings 6 of agitator main part respectively；
Gas entrance 11 is offered in the upside of left and right little cylinder 9, is connected to and the pressed gas of agitator homology, and left excitation is then offered in downside
Flow export 15 and right stimulus stream outlet 14, be respectively communicated with left stimulus stream entrance 3 and the right side of agitator main part with 2 conduits
Stimulus stream entrance 4；The horizontal brill of piston 10 extends radially through hole 12, and this extends radially through upper end, hole 12 and sets slightly larger pit to connect gas all the time
Entrance 11, extends radially through the position that lower end, hole 12 then moves on to the left and right end of cylinder according to piston 9 by driving and determines, selects a para-position even
Lead to left stimulus stream outlet 15 or right stimulus stream outlet 14.
The present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator, the connection embodiment of its each interface another kind of is: left,
Left driving gas entrance 16 in the two end cap of right little cylinder 9 and right driving gas entrance 13, with 2 conduits respectively with agitator main body
The left-external side branch flow passage pressure tappings 6 of part connects with right lateral branches runner pressure tappings 7, and the left side on the downside of left and right little cylinder 9 is swashed
Encourage flow export 15 and right stimulus stream outlet 14, be communicated to right stimulus stream entrance 4 He of agitator main part by 2 conduits intersections
Left stimulus stream entrance 3, can realize correct commutation excitation equally.
The present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator, the left stimulus stream runner 24 on its body plate 1 and right excitation
Stream runner 20 is symmetrical in the axis of symmetry of main board, have between axis and the vertical line of the axis of symmetry of each stimulus stream runner 1～
30 ° the most i.e. towards the angle of power stream Way out.
The present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator, the left and right little cylinder 9 of its reversal valve part one, and occupy
The piston 10 of middle movement, the cross section of the two is all circular or is all rectangle, during for circle, is provided with piston anti-rotating untie-sell nail；
The both sides inner face of left and right little cylinder 9, is provided with piston limit damping material and structure.
The present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator, processes by axisymmetrical and fan-shaped row on body plate 1
The left-external side branch flow passage 23 of cloth and right lateral branches runner 21 and 0～8 distinguish branch flow passage 22,1～7 can be automatically formed
The Gu Bi shunting of wedge shape is split.Each branch flow passage is uiform section straight channel or to the tapered coning tower tray road of exit width, its width of flow path
For 1～5 times of jet nozzle runner 18 exit width, height is equal with vibration chamber 19, is all jet nozzle runner 18 and exports height
0.9～2 times of degree.
The present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator, its jet nozzle runner 18 is tapering type runner or direct current
Road, its exit width and height according to jet flow depending on, width range is 1～200 millimeter, height i.e. depth bounds be 1～
500 millimeters.
The present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator, the width in its vibration chamber 19, go out for jet nozzle runner 18
1.05～4 times of mouth width, 2～20 times of a length of jet nozzle runner 18 exit width in vibration chamber 19, vibration chamber 19
It it is highly 0.9～2 times of jet nozzle runner 18 outlet height.
The present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator, left stimulus stream runner 24 that symmetry is offered and right stimulus stream stream
Road 20, it is at 0.7～1 times that entrance open height is vibration chamber 19 height of vibration chamber 19 sidewall, and its A/F is jet
0.02～0.5 times of nozzle flow channel 18 exit width, the distance that its sidewall opening to jet nozzle runner 18 exports, for vibration chamber
0.15～1 times of 19 length.
The operation principle of the present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator is described below:
Source of the gas gas enters air inlet cushion chamber 17 from the pressed gas entrance 2 of agitator main part, then through jet nozzle stream
Road 18 is accelerated into high-speed jet and enters vibration chamber 19.Owing to there is asymmetric or disturbance, jet suction vibration both sides, chamber 19 gas
Effect uneven, both sides pressure reduction make jet to side slightly deflection, more make pressure reduction increase and final attached wall in vibration chamber 19
A certain side wall surface, jet is imported into the lateral branches runner in that downstream, side of this wall then.If jet enters left-external side branch
Runner 23, in its runner, pressure raises, and the pressure intersected in the little cylinder in right side being communicated to left and right little cylinder 9 also raises, and promotes
Piston 10 is moved to the left, and makes radial direction through hole 12 para-position export 15 to left stimulus stream, enters the gas same with agitator of gas entrance 11
Source carry out gas, be flowed into left stimulus stream outlet 15 through radial direction through hole 12, then be guided to the left excitation of agitator main part
Inflow entrance 3, enters vibration chamber 19 by left stimulus stream runner 24 from left side, promotes the power stream of the most attached wall to cut to the right
Change.After having switched, right lateral branches runner 21 has jet to flow through and pressure raises, and intersects and is communicated to left and right little cylinder 9
Pressure in the little cylinder in left side also raises, then promotes piston 10 to move right, and makes radial direction through hole 12 para-position export to right stimulus stream
14, carry out gas and be flowed into right stimulus stream outlet 14 through radial direction through hole 12, then be guided to right stimulus stream entrance 4, by right excitation
Stream runner 20 enters vibration chamber 19 from right side, promotes the power stream of the most attached wall to switch the most to the left, and the formation that goes round and begins again is shaken
Swing.
The operational factor scope of the present invention adaptive switched strengthening Exciting-simulator system fluidic oscillator is as follows:
Source of the gas atmospheric pressure scope: 0.01～40MPa；
Fluidic oscillation frequency: 0.1～300Hz.
Claims (10)
- The most adaptive switched strengthening Exciting-simulator system fluidic oscillator, it is characterised in that this adaptive switched strengthening Exciting-simulator system fluidic oscillator is by shaking Swinging device main body and adaptive switched reversal valve two parts composition, agitator main body includes body plate (1), upper cover plate (5) and base (8)； Upper cover plate (5) offers pressed gas entrance (2), left stimulus stream entrance (3), right stimulus stream entrance (4), left-external side branch Runner pressure tappings (6) and right lateral branches runner pressure tappings (7)；Body plate (1) offers the degree of depth and is not more than body plate (1) The air inlet cushion chamber (17) of through thickness, jet nozzle runner (18), vibration chamber (19), right stimulus stream runner (20), right outside are divided Branch flow passage (21), middle differentiation branch flow passage (22), left-external side branch flow passage (23) and the left stimulus stream runner of 0 to 8 fan-shaped arrangement (24)；Adaptive switched reversal valve is made up of the left and right little cylinder (9) of one and the piston (10) of movement placed in the middle；At left and right little cylinder (9) it is respectively equipped with left driving gas entrance (16) and right driving gas entrance (13) in two end cap, is intersected respectively by two conduits It is connected with right lateral branches runner pressure tappings (7) and left-external side branch flow passage pressure tappings (6) of agitator main body；Left and right little Gas entrance (11) is offered in the upside of cylinder (9), is connected to and the pressed gas of adaptive switched strengthening Exciting-simulator system fluidic oscillator homology, Left stimulus stream outlet (15) and right stimulus stream outlet (14) are offered in the downside of left and right little cylinder (9), are connected respectively by two conduits Lead to left stimulus stream entrance (3) and the right stimulus stream entrance (4) of agitator main body；Piston (10) horizontal brill extends radially through hole (12), Extend radially through hole (12) upper end and set pit to connect gas entrance (11) all the time, extend radially through hole (12) lower end according to piston (10) Moved on to one end in left and right little cylinder (9) by driving, select a para-position and be communicated to left stimulus stream outlet (15) or the outlet of right stimulus stream (14)。
- Adaptive switched strengthening Exciting-simulator system fluidic oscillator the most according to claim 1, it is characterised in that another of each interface Plant connected mode as follows: left driving gas entrance (16) in the two end cap of left and right little cylinder (9) and right driving gas entrance (13), By two conduits respectively with left-external side branch flow passage pressure tappings (6) of agitator main body and right lateral branches runner pressure tappings (7) connection, left stimulus stream outlet (15) of the downside of left and right little cylinder (9) and right stimulus stream outlet (14), by two conduits Intersection is respectively communicated with right stimulus stream entrance (4) and the left stimulus stream entrance (3) of agitator main body, realizes correct commutation equally Excitation.
- Adaptive switched strengthening Exciting-simulator system fluidic oscillator the most according to claim 1 and 2, it is characterised in that on body plate (1) Left stimulus stream runner (24) and right stimulus stream runner (20) be symmetrical in the axis of symmetry of body plate (1), left stimulus stream runner (24) and have between axis and the vertical line of the axis of symmetry of right stimulus stream runner (20) 1～30 ° the most i.e. towards power stream The angle of Way out；Body plate (1) is provided with the left-external side branch flow passage (23) by the fan-shaped arrangement of axisymmetrical distribution, Article 0～8, distinguishing branch flow passage (22) and right lateral branches runner (21) in, the Gu Bi shunting forming 1～7 wedge shape is split；Each branch Runner is uiform section straight channel or to the tapered coning tower tray road of exit width, its width of flow path is jet nozzle runner (18) outlet width 1～5 times of degree, height is equal with vibration chamber (19), is 0.9～2 times of jet nozzle runner (18) outlet height.
- Adaptive switched strengthening Exciting-simulator system fluidic oscillator the most according to claim 1 and 2, it is characterised in that described is left and right Little cylinder (9) and the piston (10) of movement placed in the middle, the cross section of the two is circle or is rectangle, when cross section is circular Time, it is provided with piston anti-rotating untie-sell nail；The both sides inner face of left and right little cylinder (9) is provided with piston limit vibration-proof structure.
- Adaptive switched strengthening Exciting-simulator system fluidic oscillator the most according to claim 3, it is characterised in that described is left and right little Cylinder (9) and the piston (10) of movement placed in the middle, the cross section of the two is circle or is rectangle, when cross section is circular, It is provided with piston anti-rotating untie-sell nail；The both sides inner face of left and right little cylinder (9) is provided with piston limit vibration-proof structure.
- 6. according to the adaptive switched strengthening Exciting-simulator system fluidic oscillator described in claim 1,2 or 5, it is characterised in that described penetrates Flow nozzle runner (18) is tapering type runner or straight channel, its exit width and height according to jet flow depending on, width be 1～ 200 millimeters, the height i.e. degree of depth is 1～500 millimeter；The width of vibration chamber (19), for jet nozzle runner (18) exit width 1.05～4 times, 2～20 times of a length of jet nozzle runner (18) exit width of vibration chamber (19), the height of vibration chamber (19) Degree is 0.9～2 times of jet nozzle runner (18) outlet height.
- Adaptive switched strengthening Exciting-simulator system fluidic oscillator the most according to claim 3, it is characterised in that described jet nozzle Runner (18) is tapering type runner or straight channel, and depending on its exit width and height are according to jet flow, width is 1～200 millis Rice, the height i.e. degree of depth is 1～500 millimeter；Vibration chamber (19) width, for jet nozzle runner (18) exit width 1.05～ 4 times, 2～20 times of a length of jet nozzle runner (18) exit width of vibration chamber (19), the height of vibration chamber (19) is for penetrating 0.9～2 times of flow nozzle runner (18) outlet height.
- Adaptive switched strengthening Exciting-simulator system fluidic oscillator the most according to claim 4, it is characterised in that described jet nozzle Runner (18) is tapering type runner or straight channel, and depending on its exit width and height are according to jet flow, width is 1～200 millis Rice, the height i.e. degree of depth is 1～500 millimeter；Vibration chamber (19) width, for jet nozzle runner (18) exit width 1.05～ 4 times, 2～20 times of a length of jet nozzle runner (18) exit width of vibration chamber (19), the height of vibration chamber (19) is for penetrating 0.9～2 times of flow nozzle runner (18) outlet height.
- 9. according to the adaptive switched strengthening Exciting-simulator system fluidic oscillator described in claim 1,2,5,7 or 8, it is characterised in that symmetrical The left stimulus stream runner (24) offered and right stimulus stream runner (20), its vibration chamber (19) sidewall entrance open height for shaking Swing chamber (19) height 0.7～1 times, its A/F is 0.02～0.5 times of jet nozzle runner (18) exit width, its side Wall opening is to 0.15～1 times that the distance that jet nozzle runner (18) exports is vibration chamber (19) length.
- Adaptive switched strengthening Exciting-simulator system fluidic oscillator the most according to claim 6, it is characterised in that the left side that symmetry is offered Stimulus stream runner (24) and right stimulus stream runner (20), it is vibration chamber (19) in the entrance open height of vibration chamber (19) sidewall 0.7～1 times of height, its A/F is 0.02～0.5 times of jet nozzle runner (18) exit width, and its sidewall opening arrives The distance that jet nozzle runner (18) exports is 0.15～1 times of vibration chamber (19) length.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113019789A (en) * | 2021-03-19 | 2021-06-25 | 大连理工大学 | Wall-separating type feedback jet oscillator |
| CN113266623A (en) * | 2021-05-17 | 2021-08-17 | 中国航空发动机研究院 | Fluid oscillator with single feedback channel |
| CN113404747A (en) * | 2021-06-29 | 2021-09-17 | 上海交通大学 | Outlet same-phase control and frequency decoupling oscillator |
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| CN113266623A (en) * | 2021-05-17 | 2021-08-17 | 中国航空发动机研究院 | Fluid oscillator with single feedback channel |
| CN113404747A (en) * | 2021-06-29 | 2021-09-17 | 上海交通大学 | Outlet same-phase control and frequency decoupling oscillator |
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