CN109646962A - A kind of single flow recreation wind tunnel exhaust structure - Google Patents
A kind of single flow recreation wind tunnel exhaust structure Download PDFInfo
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- CN109646962A CN109646962A CN201811592761.5A CN201811592761A CN109646962A CN 109646962 A CN109646962 A CN 109646962A CN 201811592761 A CN201811592761 A CN 201811592761A CN 109646962 A CN109646962 A CN 109646962A
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- diffuser
- round corner
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
- A63G31/00—Amusement arrangements
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
- A63G31/00—Amusement arrangements
- A63G2031/005—Skydiving
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Abstract
A kind of single flow recreation wind tunnel exhaust structure, comprising: the second diffuser, round corner section, exhaust section；Second diffuser entrance connects the outlet of flight experience section, and the second diffuser entrance to outlet is arranged certain angle of flare and slows down to the air-flow for entering diffuser；The entrance of round corner section connects the outlet of the second diffuser, deflector is evenly arranged inside round corner section, the airflow direction for changing the outlet of the second diffuser, reduces the pressure loss caused by the flow separation of air-flow, and the air-flow that the second diffuser exports uniformly is guided to the outlet of round corner section；The entrance of the outlet connection exhaust section of round corner section, the outlet connection ambient atmosphere of exhaust section (repeatedly reduces air-flow velocity by exhaust structure, the kinetic pressure losses of air-flow are reduced in the outlet of exhaust section), low-angle expansion reduces flow velocity to exhaust section in the horizontal direction, two groups of webs placed vertically are installed inside exhaust section, reduce the pressure loss caused by flow separation in exhaust.
Description
Technical field
The present invention relates to a kind of single flow recreation wind tunnel exhaust structures, belong to recreation wind tunnel exhaust technique field.
Background technique
Extreme sport is just becoming a kind of new trend, and the appearance for recreation wind tunnel of parachuting causes the upsurge of indoor parachute jumping.It jumps
Umbrella recreation wind tunnel is developed by vertical wind tunnel, offsets human bady gravitational using the resistance that vertical ascent air-flow generates, experiencer can
To make the movement such as whereabouts, suspension, rising by changing posture.Parachute jumping recreation wind tunnel mainly has single flow, Dan Huiliu at present
Three kinds of formula, double back streaming patterns.
Flight experience section (test section) outlet of single flow recreation wind tunnel is directly connected with the external world, and dynamical system is arranged in down
Side, according to service condition difference, some dynamical systems are directly arranged at immediately below flight experience section entrance, directly supply vertically upward
Gas；Some dynamical systems are arranged in two sides below flight experience section, from the horizontal air inlet in two sides, after diversion section air-flow vertically to
On.Single flow recreation wind tunnel typically belongs to plain type wind-tunnel, is limited by dynamical system, overall dimensions and structural shape, flight
Experience section diameter is typically not greater than 2m, and the limit designs 3~4m of flying height in 2.2m or so, wind speed generally in 45~50m/s,
It is all restricted to the height and weight of experiencer, it can only often meet the lesser consumer of figure.
In the market existing single flow recreation wind tunnel usually flight experience section export arrangement one layer of protective net, and directly with
Atmosphere connection.Air-flow has very big hydrostatic pressures losses by protective net, and flow velocity is higher when directly arranging to atmosphere, will also result in
Very big kinetic pressure losses, therefore, under this scheme, the pitot loss in wind-tunnel exit is greatly (1500~2000Pa).
Summary of the invention
Present invention solves the technical problem that are as follows: it overcomes the shortage of prior art, a kind of single flow recreation wind tunnel exhaust knot is provided
Structure promotes performance of wind tunnel and efficiency, reduces the pitot loss in single flow recreation wind tunnel exit, pitot loss can be reduced to
30%~50% designed in the past, moreover it is possible to run wind-tunnel equally can in rain and snow.
The technical solution that the present invention solves are as follows: a kind of single flow recreation wind tunnel exhaust structure, comprising: the second diffuser turns
Angle section, exhaust section；
Second diffuser entrance connects the outlet of flight experience section, and certain angle of flare is arranged to outlet for the second diffuser entrance
Slow down to the air-flow for entering diffuser；
The entrance of round corner section connects the outlet of the second diffuser, and deflector is evenly arranged inside round corner section, changes second and expands
The air-flow that second diffuser exports uniformly is guided to the outlet of round corner section, and effectively reduces gas by the airflow direction for dissipating section outlet
The pressure loss caused by flow separation occurs when stream changes direction；
The entrance of the outlet connection exhaust section of round corner section, the outlet connection atmospheric environment of exhaust section is (by exhaust knot
Structure repeatedly reduces air-flow velocity, reduces the kinetic pressure losses of air-flow in the outlet of exhaust section), exhaust section low-angle in the horizontal direction
Expansion reduces flow velocity, is equipped with two groups of webs placed vertically inside exhaust section, reduces caused by flow separation and presses in exhaust
Power loss.
Flight experience section is that lower part is equal straight sections, and top is the first diffuser, waits straight sections and the first diffuser to close and connects,
Flight experience section bottom is equipped with blower, provides lift for flight experience section, is outlet at the top of flight experience section.
Second diffuser, entrance are circle, and outlet is square；
Second diffuser entrance is not more than 5 ° to export expansion angle, and outlet is not more than 2 with inlet area ratio.
Consider the rigidity of structure and intensity, the wall thickness of the second diffuser is 8mm.
Consider the operating environment of wind-tunnel, processing cost, structural strength, leakproofness, the factors such as ability is strong for bearing internal pressure, the
The material of two diffusers is steel construction.
Round corner section a, comprising: entrance, two outlets, entrance are square, shape, size with the second diffuser
Match；Outlet is rectangle, the considerations of for flow conservation and flow control, the length of long sides of round corner section outlet and round corner section entrance
The side length of square is identical, and the length of short sides of round corner section outlet is the half of the side length of the square of round corner section entrance.
Consider the rigidity of structure and intensity, the wall thickness of round corner section is 8mm.
Consider the operating environment of wind-tunnel, processing cost, structural strength, leakproofness, the factors such as ability is strong for bearing internal pressure, turns
The material of angle section is steel construction.
Round corner section is provided with deflector, and air-flow is reduced when being mainly used for airflow-reversing because phenomena such as flow separation, reflux leads
The flow losses of cause, preferred embodiment be the conditions such as pressure and wind speed when being run according to recreation wind tunnel (preferably stagnation pressure 800~
1400Pa, 45~80m/s of wind speed), the preferred embodiment of deflector is to be dimensioned to: center of circle angle is 90~100 °, and inner circle is straight
Diameter is 450~600mm, and length is 1000~1300mm, 5~8mm of thickness, two deflector clipping rooms away from for 200~300mm,
Setting angle is at an angle of 45 degrees to the horizontal plane.Preferred arrangement is no less than 12 groups of deflectors altogether inside round corner section, and every side is no less than 6 groups, and two
Side is symmetrical.There are four webs placed vertically, every side 2~3 in round corner section.Single deflector is installed by welding manner
Between round corner section and web or between two webs, every 3~4 deflectors are one group.
Exhaust section, entrance are rectangle, and it is trapezoidal for exporting.Entrance opening dimension matches with round corner section outlet size, preferred embodiment
2 cannot be greater than for outlet trapezoidal area and entrance rectangular area ratio.In order to avoid air-flow in exhaust section because flow channel is unexpected
Become larger and separate, preferred embodiment is to be disposed with 2~3 webs in every side exhaust section, is welded with round corner section web.Due to row
Gas intersegmental part has installed web additional, plays certain rectified action, and preferred embodiment is that the upper limit of the horizontal direction angle of flare is increased to
15 °, it is trapezoidal up and down two bottoms it is identical relative to the angle of flare of entrance, preferred embodiment be exhaust section top side in the horizontal direction than bottom side
Upper longer, the two differs 800~1200mm, when this design on the one hand can be to avoid runing under the conditions of open-air atmosphere rain and snow weather
There is ponding, on the other hand can also occur viscosity splitting phenomenon to avoid air-flow.Preferred embodiment be trapezoidal bottom grow 4100~
4300mm, upper bottom long 4400~4600mm, high 1900~2100mm.
The advantages of the present invention over the prior art are that:
(1) the second diffuser entrance connection flight experience section outlet of the invention, and in the diffuser part of flight experience section
On the basis of the angle of flare, the angle of flare is increased, is slowed down to air-flow, and the design of this segmentation diffusion can guarantee that air-flow is subtracting
Be not in during speed because the angle of flare it is excessive caused by separate and reflux, while being also able to achieve and muzzle velocity be effectively reduced
Purpose.
(2) it is evenly arranged the deflector by special designing inside round corner section of the present invention, is changing the outlet of the second diffuser
Airflow direction while, reduce the pressure loss caused by the flow separation of air-flow.
(3) two groups of webs placed vertically are installed, reducing flow separation in exhaust causes inside exhaust section of the present invention
The pressure loss.
(4) exhaust section top side is longer than bottom side, on the one hand can be to avoid rainy day ponding, on the other hand can be to avoid the viscous of air-flow
Property separation.
(5) outlet of exhaust section of the present invention connects ambient atmosphere, repeatedly reduces air-flow velocity by exhaust structure, is being vented
The outlet of section reduces the kinetic pressure losses of air-flow.
Detailed description of the invention
Fig. 1 is the plane structure chart of single flow recreation wind tunnel exhaust structure of the present invention；
Fig. 2 is the three-dimensional structure diagram of single flow recreation wind tunnel exhaust structure of the present invention；
Fig. 3 is deflector structure figure in round corner section of the present invention；
Fig. 4 is exhaust section web arragement construction figure of the present invention.
Specific embodiment
The invention will be described in further detail in the following with reference to the drawings and specific embodiments.
Recreation wind tunnel is a kind of large-scale amusement equipment being made of multiple subassemblies.Common single flow recreation wind tunnel is by moving
Power section, experience section and multiple flow transition sections composition, power section are arranged in wind-tunnel bottom, via a series of changeover portions in experience section
Air-flow straight up is generated, upward lift is generated to experiencer, experiencer is made to realize the simulated altitude parachute jumping that suspends.Direct current
The experience section outlet of formula recreation wind tunnel is commonly connected directly to atmospheric environment, and pitot loss is larger, the exhaust structure that the present invention designs
It is connected to the outlet of experience section, Xiang great Qi is arranged again after the air-flow come out to experience section is repeatedly slowed down, commutation is handled, in this way may be used
The pitot loss of wind-tunnel is effectively reduced, performance of wind tunnel is improved, is cut operating costs.
A kind of single flow recreation wind tunnel exhaust structure of the present invention, comprising: the second diffuser, round corner section, exhaust section；Second expands
Dissipate the outlet of section entrance connection flight experience section, certain angle of flare is arranged to entering diffuser in the second diffuser entrance to outlet
Air-flow slows down；The entrance of round corner section connects the outlet of the second diffuser, and deflector is evenly arranged inside round corner section, changes the
The airflow direction of two diffusers outlet, reduces the pressure loss caused by the flow separation of air-flow, the gas that the second diffuser is exported
Stream is uniformly guided to the outlet of round corner section；The entrance of the outlet connection exhaust section of round corner section, the outlet connection of exhaust section are extraneous big
Gas (repeatedly reduces air-flow velocity by exhaust structure, reduce the kinetic pressure losses of air-flow in the outlet of exhaust section), and exhaust section exists
The expansion of horizontal direction low-angle reduces flow velocity, is equipped with two groups of webs placed vertically inside exhaust section, reduces stream in exhaust
It is dynamic to separate the caused pressure loss.
A kind of single flow recreation wind tunnel exhaust structure of the present invention, comprising: the second diffuser, round corner section, exhaust section, as Fig. 1,
Shown in Fig. 2.
1 unit number table of table
| Number | Title |
| 1 | Diffuser |
| 2 | Round corner section |
| 3 | Exhaust section |
Second diffuser entrance connects the outlet of flight experience section, and certain angle of flare is arranged to outlet for the second diffuser entrance
Slow down to the air-flow for entering diffuser；
The entrance of round corner section connects the outlet of the second diffuser, is evenly arranged deflector inside round corner section, as shown in figure 3,
The air-flow that second diffuser exports uniformly is guided to the outlet of round corner section by the airflow direction for changing the outlet of the second diffuser, and
It effectively reduces gas and the pressure loss caused by flow separation occurs when stream changes direction；
The entrance of the outlet connection exhaust section of round corner section, the outlet connection atmospheric environment of exhaust section is (by exhaust knot
Structure repeatedly reduces air-flow velocity, reduces the kinetic pressure losses of air-flow in the outlet of exhaust section), exhaust section low-angle in the horizontal direction
Expansion reduces flow velocity, is equipped with two groups of webs placed vertically inside exhaust section, as shown in figure 4, reducing flowing point in exhaust
From the caused pressure loss.
Flight experience section is made of the equal straight sections of lower part and first diffuser on top, and straight sections and the first diffuser is waited to close
Connection, flight experience section bottom are equipped with blower, provide air-flow vertically upward for flight experience section, are at the top of flight experience section
Mouthful.
The entrance of second diffuser is circle, and outlet is square, in order to avoid flow separation, theoretical upper inlet to outlet
The angle of flare should be not more than 5 °, and outlet is not more than 2 with inlet area ratio.Second diffuser is on the basis of the first diffuser angle of flare
It is expanded again, although the absolute angle of flare is greater than 5 °, relative distension angle, so both can faster, more effectively less than 5 °
Decelerating flow is also avoided that the excessive caused flow separation of the angle of flare.Meanwhile considering operating environment, processing cost, the knot of wind-tunnel
Structure intensity, leakproofness, bear internal pressure ability is strong etc. that factors, the second diffuser use steel construction, wall thickness 8mm.
The round corner section of exhaust structure includes an entrance and two outlets.Entrance is square, and is exported with the second diffuser
Shape, size matching；Outlet is rectangle, the considerations of for flow conservation and flow control, the length of long sides of round corner section outlet
Identical as the side length of square of round corner section entrance, the length of short sides of round corner section outlet is the side length of the square of round corner section entrance
Half.Consider the operating environment of wind-tunnel, processing cost, structural strength, leakproofness, the factors such as ability is strong for bearing internal pressure, turns
The material of angle section is steel construction, wall thickness 8mm.
In addition, round corner section is internally provided with deflector, air-flow can be reduced in airflow-reversing because flow separation, reflux etc. are existing
As caused flow losses, the conditions such as pressure and wind speed when being run according to recreation wind tunnel (800~1400Pa of stagnation pressure, wind speed 45
~80m/s), by calculating, deflector is dimensioned to: center of circle angle is 90~100 °, and interior circular diameter is 450~600mm,
Length be 1000~1300mm, 5~8mm of thickness, two deflector clipping rooms away from be 200~300mm, setting angle with level at
45° angle.It needs altogether to arrange inside round corner section and is no less than 12 groups of deflectors, every side must not be less than 6 groups of deflectors, and two sides are symmetrically divided
Cloth.There are four webs placed vertically, every side 2~3 in round corner section.Single deflector is mounted on round corner section by welding manner
Between web or between two webs, every 3~4 deflectors are one group.
Exhaust section of the invention, entrance are rectangle, and it is trapezoidal for exporting.Entrance opening dimension matches with round corner section outlet size,
2 cannot be greater than by exporting trapezoidal area and entrance rectangular area ratio.In order to avoid air-flow in exhaust section because flow channel becomes suddenly
It separates greatly, 2~3 webs is disposed in every side exhaust section, welded with round corner section web.Due to being installed additional inside exhaust section
Web, plays certain rectified action, and the upper limit of the horizontal direction angle of flare is increased to 15 °, trapezoidal two bottoms up and down relative to
The angle of flare of entrance is identical, and exhaust section top side is longer in the horizontal direction than bottom side, and the two differs 800~1200mm, this
On the one hand can be to avoid there is ponding in design when runing under the conditions of open-air atmosphere rain and snow weather, on the other hand can also be to avoid air-flow
There is viscosity splitting phenomenon.Long 4100~the 4300mm in trapezoidal bottom, upper bottom long 4400~4600mm, high 1900~2100mm.
The outlet of exhaust section of the present invention connects ambient atmosphere, air-flow velocity is repeatedly reduced by exhaust structure, in exhaust section
Outlet reduce the kinetic pressure losses of air-flow.
Because the second diffuser entrance connects the first diffuser outlet in flight experience section, size is needed according to winged
Depending on the size of row experience section, but relative distension angle, no more than 5 °, the outlet of the second diffuser cannot be greater than with inlet area ratio
2, meanwhile, in order to be effectively reduced air velocity, it is ensured that air velocity can reduce 30% or more, and pressure drop coefficient is little
In 0.04.
As described in Figure 3, deflector is dimensioned to: center of circle angle is 90~100 °, and interior circular diameter is 450~600mm,
Length be 1000~1300mm, 5~8mm of thickness, two deflector clipping rooms away from be 200~300mm, setting angle with level at
45° angle.It needs altogether to arrange inside round corner section and is no less than 12 groups of deflectors, every side must not be less than 6 groups of deflectors, and two sides are symmetrically divided
Cloth.There are four webs placed vertically, every side 2~3 in round corner section.Single deflector is mounted on round corner section by welding manner
Between web or between two webs, every 3~4 deflectors are one group.The design of deflector will guarantee pressure drop coefficient
No more than 0.35.
As described in Figure 4, exhaust section entrance opening dimension matches with round corner section outlet size, outlet trapezoidal area and entrance rectangle
Area ratio cannot be greater than 2.In order to avoid air-flow separates in exhaust section because flow channel becomes larger suddenly, every side exhaust section
2~3 webs are inside disposed with, are welded with round corner section web.Due to having installed web additional inside exhaust section, certain rectification is played
Effect, the upper limit of the horizontal direction angle of flare are increased to 15 °, and trapezoidal two bottoms up and down are identical relative to the angle of flare of entrance, exhaust section
Top side is longer in the horizontal direction than bottom side, and the two differs 800~1200mm, and this design on the one hand can be to avoid outdoor ring
Occur ponding when runing under the conditions of the rain and snow weather of border, on the other hand can also occur viscosity splitting phenomenon to avoid air-flow.Under trapezoidal
Grow 4100~4300mm, upper bottom long 4400~4600mm, high 1900~2100mm in bottom.The pressure drop coefficient of exhaust section cannot be big
In 0.02.
If the second diffuser inlet area is A1, discharge area A2, relative distension angle is α, coefficient of frictional resistance λ, gas
Body Reynolds number is Re.In order to further decrease wind speed and reduce hydrostatic pressures losses, then meet following preference relation:
If round corner section width is b, single side flow guiding plate quantity is n in round corner section, and deflector radius is r, then round corner section parameter
Following preference relation should be met:
0.9(r/b)-1≤n≤2.13(r/b)-1
And consider for processing cost and difficulty of processing, it is proposed that select sheet type deflector, then
0.1≤r/b≤0.4
If exhaust section inlet area is B1, discharge area B2, floor length L, outlet hydraulic diameter is D, because of exhaust section
Inside there are two blocks of webs placed vertically, plays rectified action, two blocks of webs are installed according to certain expansion angle, by exhaust section
Three diffusers are divided into, if the angle of flare of three diffusers is respectively θ1、θ2And θ3, in order to reduce hydrostatic pressures losses when exhaust
And friction loss, and further decrease wind speed, then parameter will meet following preference relation:
θ1,θ2,θ3≤5°
It is connected between three sub-units using welding manner, it is therefore desirable to notice that outlet is matched with the size between entrance.
In addition, in order to effectively slow down, it is ensured that it is following that exhaust section exports gross area B and the second diffuser entrance gross area A satisfaction
Preference relation:
Exhaust structure workflow of the invention are as follows: air-flow enters flight experience section after pressurization accelerates, and is experiencer
Lift is provided.Air-flow is exported from flight experience section to flow out, into the second diffuser, entrance velocity V1, muzzle velocity V2,
To guarantee V in design2/V1≤0.7。
After flowing through the second diffuser, air-flow enters round corner section, the inner deflector in round corner section from the outlet of the second diffuser
Under effect, flow direction is from being changed to horizontal vertically and be uniformly divided into the exhaust section that two strands of air flow directions are arranged symmetrically, at turning
Section inlet air flow static pressure is P1, in round corner section exit, air-flow static pressure is P2, in the design of deflector, it is ensured that P2/P1≥
0.65。
Finally, two strands of air-flows flow into two exhaust sections in left and right from the outlet of round corner section or so two respectively, and pass through exhaust section
Deceleration again, arrange Xiang great Qi.
Aerodynamic profile of the invention is calculated in the design process through excessive wheel engineering and numerical simulation work, according to emulation
Calculated result has done more wheel optimizations to aerodynamic profile in terms of controlling the pressure loss, finally selectes the program.It compares from flying body
The design that section is directly vented to atmospheric environment is tested, which can be reduced to the pressure loss direct vent design scheme pressure
40% or so of damage.By taking flight experience section wind speed is 65m/s as an example, using exhaust structure of the invention, pressure damage can be reduced
1000Pa is lost, and wind speed is higher, reduces crushing effect and be more obvious.This optimization function can substantially reduce the requirement to blower, section
About construction cost, while also reducing operation cost.
The unspecified content of description of the invention is general knowledge known in this field.
Claims (11)
1. a kind of single flow recreation wind tunnel exhaust structure, characterized by comprising: the second diffuser, round corner section, exhaust section；
Second diffuser entrance connects the outlet of flight experience section, the second diffuser entrance to outlet be arranged certain angle of flare into
The air-flow for entering diffuser slows down；
The entrance of round corner section connects the outlet of the second diffuser, and deflector is evenly arranged inside round corner section, changes the second diffuser
The air-flow that second diffuser exports uniformly is guided to the outlet of round corner section, and effectively reduces gas and flowing by the airflow direction of outlet
The pressure loss caused by flow separation occurs when changing direction；
The entrance of the outlet connection exhaust section of round corner section, the outlet of exhaust section connect atmospheric environment, and exhaust section is in level side
Expanding to low-angle reduces flow velocity, is equipped with two groups of webs placed vertically inside exhaust section, reduces flow separation in exhaust
The caused pressure loss.
2. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: under flight experience section is
Portion is to wait straight sections, and top is the first diffuser, waits straight sections and the first diffuser to close and connects, flight experience section bottom is equipped with wind
Machine provides lift for flight experience section, is outlet at the top of flight experience section.
3. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: the second diffuser enters
Mouth is circle, and outlet is square.
4. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: the second diffuser entrance
It is not more than 5 ° to export expansion angle, outlet is not more than 2 with inlet area ratio.
5. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: consider the rigidity of structure and
Intensity, the wall thickness of the second diffuser are 8mm.
6. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: the material of the second diffuser
Matter is steel construction.
7. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: round corner section, comprising: one
A entrance, two outlets, entrance are square, match with the shape of the second diffuser, size；Outlet is rectangle, according to flow
Conservation and flow control requirement, the length of long sides of round corner section outlet and the side length of square of round corner section entrance are identical, round corner section
The length of short sides of outlet is the half of the side length of the square of round corner section entrance.
8. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: the wall thickness of round corner section is
8mm~10mm.
9. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: the material of round corner section is
Steel construction.
10. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: round corner section is provided with
Deflector is used to reduce air-flow because of flow losses caused by flow separation, backflow phenomenon when airflow-reversing.
11. a kind of single flow recreation wind tunnel exhaust structure according to claim 1, it is characterised in that: exhaust section, entrance are
Rectangle exports to be trapezoidal, and entrance opening dimension matches with round corner section outlet size.
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| CN201811592761.5A CN109646962B (en) | 2018-12-25 | 2018-12-25 | Straight-flow entertainment wind tunnel exhaust structure |
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| CN201811592761.5A CN109646962B (en) | 2018-12-25 | 2018-12-25 | Straight-flow entertainment wind tunnel exhaust structure |
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| CN109646962A true CN109646962A (en) | 2019-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346389A (en) * | 2020-03-10 | 2020-06-30 | 中国航天空气动力技术研究院 | Medium-sized direct current type entertainment wind tunnel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531484A (en) * | 1994-02-10 | 1996-07-02 | Kawano; Michihiko | Elbow provided with guide vanes |
| US5753811A (en) * | 1994-07-19 | 1998-05-19 | Inversiones Bernoulli C.A. | Aerodynamic tunnel particularly suited for entertainment purposes |
| CN2896256Y (en) * | 2006-06-06 | 2007-05-02 | 刘晓萌 | Ring-shape return-flow vertical wind tunnel |
| US20150375125A1 (en) * | 2014-06-30 | 2015-12-31 | Airborne America, Inc. | Wind tunnel design with expanding corners |
| WO2018122575A1 (en) * | 2016-12-29 | 2018-07-05 | Aerodium Technologies, Sia | Recirculating vertical wind tunnel with passive cooling |
| CN108800175A (en) * | 2017-04-26 | 2018-11-13 | 南京空天机电设备有限公司 | A kind of large size flue Three-dimensional Flow homogenization method and device |
-
2018
- 2018-12-25 CN CN201811592761.5A patent/CN109646962B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531484A (en) * | 1994-02-10 | 1996-07-02 | Kawano; Michihiko | Elbow provided with guide vanes |
| US5753811A (en) * | 1994-07-19 | 1998-05-19 | Inversiones Bernoulli C.A. | Aerodynamic tunnel particularly suited for entertainment purposes |
| CN2896256Y (en) * | 2006-06-06 | 2007-05-02 | 刘晓萌 | Ring-shape return-flow vertical wind tunnel |
| US20150375125A1 (en) * | 2014-06-30 | 2015-12-31 | Airborne America, Inc. | Wind tunnel design with expanding corners |
| WO2016003765A1 (en) * | 2014-06-30 | 2016-01-07 | Airborne America, Inc. | Improved wind tunnel design with expanding corners |
| WO2018122575A1 (en) * | 2016-12-29 | 2018-07-05 | Aerodium Technologies, Sia | Recirculating vertical wind tunnel with passive cooling |
| CN108800175A (en) * | 2017-04-26 | 2018-11-13 | 南京空天机电设备有限公司 | A kind of large size flue Three-dimensional Flow homogenization method and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346389A (en) * | 2020-03-10 | 2020-06-30 | 中国航天空气动力技术研究院 | Medium-sized direct current type entertainment wind tunnel |
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| CN109646962B (en) | 2020-09-18 |
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