CN109799062B - Blowing type wind-blowing wind tunnel with drainage section - Google Patents
Blowing type wind-blowing wind tunnel with drainage section Download PDFInfo
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- CN109799062B CN109799062B CN201910225934.8A CN201910225934A CN109799062B CN 109799062 B CN109799062 B CN 109799062B CN 201910225934 A CN201910225934 A CN 201910225934A CN 109799062 B CN109799062 B CN 109799062B
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- 238000007664 blowing Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 54
- 238000009792 diffusion process Methods 0.000 claims abstract description 25
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001494479 Pecora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Abstract
The invention discloses a blowing type wind-distributing wind tunnel with a drainage section, which comprises a power section, a flow dividing section, a diffusion section, a drainage section, a stabilizing and contracting section, a test section and an outlet diffusion section. The drainage section is divided into two types, one is a throttle valve type structure with movable blades, and the other is a drainage structure with multiple fan sections. The power section one end is connected in the external world, and the reposition of redundant personnel section is connected to the other end, and the diffusion section is being connected to the reposition of redundant personnel section other end, and the diffusion section is with stable and shrink section intercommunication and be provided with honeycomb ware and damping net in the intercommunication department, and stable and shrink section other end is connected with the test section, and the outlet diffusion section with external world communicating is being connected to the test section other end, and the drainage section one end is connected with the reposition of redundant personnel section, and the other end communicates with each other with the external world. By adopting the gust wind tunnel, gust wind with high frequency and low frequency can be generated.
Description
Technical Field
The invention relates to an experimental device for an gust wind tunnel, in particular to a blowing gust wind tunnel with a drainage section.
Background
Boundary layer wind tunnels play an increasingly important role in research in the field of wind engineering. The boundary layer wind tunnel has the capability of simulating the flow of an atmospheric boundary layer, and can provide technical support for researching the diffusion rule of atmospheric pollutants, the transmission of wind sand substances and the safety design research of a large-span bridge, a high-rise building, a tower and other unique structures.
However, for some extreme meteorological events (such as gusts, hurricanes, etc.) where unsteady airflow dominates, conventional boundary layer wind tunnels lack the ability to simulate the transient effects of these events. Thus, there is a need for an atmospheric boundary layer wind tunnel that produces gust effects.
Turbulence in the atmosphere, in general, the larger the turbulence scale, the lower the frequency of turbulence; the larger the dimensions the larger the turbulence dimension created by the obstacle. The turbulence generated by the conventional atmospheric boundary layer wind tunnel through the wedges and the rough elements is generally about 0.1m in scale, so that the generated turbulence frequency is relatively high. In actual atmosphere, because of the existence of large-scale obstacles such as high-rise buildings, hillsides, forests and the like, the energy of low-frequency parts in turbulence cannot be ignored, so that pulsating wind with large scale and low frequency is necessarily generated in the wind tunnel, and the pulsating wind can be more matched with the actual atmosphere, which is the design meaning of the wind tunnel of the gust wind.
Currently, an atmospheric boundary layer wind tunnel capable of generating gust effect generally adopts a mechanical swing mechanism or adjusts the rotation speed of a fan to generate gust. However, the wind gust generated in this way has a high wind gust frequency. The random gust speed in the atmospheric boundary layer is high or low, so that the current gust wind tunnel cannot completely simulate the random gust in the atmospheric boundary layer.
The air flow can be divided into a blowing-out type air tunnel and a suction type air tunnel according to the flowing direction of the air flow, wherein the blowing-out type air tunnel takes the air flow blown out by a fan as a flowing medium of the air tunnel; the suction wind tunnel is a low-pressure area formed by rotating the fan blades, and sucks air into the air tunnel to form air flow. The application range of the two types of wind tunnels is very wide, but the specific application fields are different, and the suction wind tunnels can only carry out wind tunnel tests such as detour, flow field measurement and the like without sand lifting because the fans are arranged at the tail ends of the tunnel bodies; the blowing wind tunnel can not only perform the non-lifting Sha Fengdong test, but also perform the lifting test of starting wind speed, sand conveying rate and the like of sand grains.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a blowing type gust wind tunnel with a drainage section, which has the advantages of simulating natural environment and providing strong gust wind with weak gust.
In order to achieve the above purpose, the present invention provides the following technical solutions: a blowing type wind-blowing wind tunnel with a drainage section. Mainly by following each section connect gradually form direct current open circuit, include: the device comprises a power section, a flow dividing section, a diffusion section, a stabilizing and contracting section, a test section, an outlet diffusion section and a drainage section. The stabilizing and shrinking section is a constant diameter pipeline for keeping the air flow uniform and stable, and rectifying equipment such as a honeycomb damper net and the like is also arranged in the stabilizing and shrinking section. The honeycomb device is used for carding and guiding air flow, and the damping net is used for enabling inlet air flow to be uniform and stable. The junction of the drainage section and the diversion section is provided with a diversion gate, and the other side of the drainage section is communicated with the outside. When the shunt door is closed, the drainage section stops running; when the diverter gate is opened, the drain section begins to operate. One end of the stabilizing and contracting section is connected with a test section, the air flow flows into an outlet diffusion section through the test section, and the outlet diffusion section is used for converting kinetic energy of the air flow into pressure energy so as to reduce the power loss of the wind tunnel. The invention can actively shunt the air flow of the power section to the outside in a suction mode by controlling the drainage fan of the drainage section, or change the blocking area of the drainage section by controlling the opening and closing of the movable blades on the throttle valve in a hydraulic linkage mode, so that the drainage flow of the power section shunted into the drainage section to the outside is changed, and the drainage flow is determined by the opening and closing degree of the movable blades. The two methods are to control the air flow of the power section into the drainage section so as to indirectly control the air flow of the main channel test section, so that the air flow of the test section is changed, and gusts with changed sizes are formed in the test section.
The invention can be provided with two drainage sections, one provided with a throttle valve and the other provided with a corner section and a plurality of fan sections. The exhaust section is used for distributing airflow and discharging the airflow to the outside, and can control the exhaust fan of the exhaust section to actively distribute the airflow of the power section to the outside in a suction mode, or the opening and closing of the movable blades on the throttle valve are controlled through hydraulic linkage to change the blocking area of the exhaust section, so that the flow of the power section into the exhaust section is changed, and the flow of the power section is determined by the opening and closing degree of the movable blades. The two methods are to control the air flow of the power section into the drainage section so as to indirectly control the air flow of the main channel test section, so that the air flow of the test section is changed, and gusts with changed sizes are formed in the test section. The throttle valve comprises a plurality of movable blades and a fixed guide cover. The fixed fairings are fixedly arranged in the drainage section, each fixed fairings is movably connected with a movable blade, and the movable blades on two adjacent fixed fairings can influence the blocking area in the drainage section through opening and closing. The exhaust section provided with fans includes corner sections and multiple fan sections. The ventilation speed in the drainage section is controlled by a plurality of fans which are arranged in order and fixedly at the joint of the corner section and the multi-fan section. One side of the shunt section is connected with the power section. The power section comprises a rear end fan cover, a rotation stopping sheet, a fan and a front end fan cover. The fan is positioned at the front end of the fan. The fan housing is divided into a front end fan housing and a rear end fan housing based on the fan position and airflow direction. The outer side of the rear end fan cover is provided with a rotation stopping sheet. The power section is connected with the diversion section and blows air flow into the main channel.
During test, air flow flows in from the power section, the air flow is accelerated to blow into the diversion section through the fan in the power section, the air flow becomes more uniform and stable through the honeycomb damping net arranged at the joint of the diffusion section and the stabilizing and contracting section, the high-speed air flow enters the test section, enters the outlet diffusion section after passing through the test section, and finally enters the atmosphere. The power section can increase the pressure of the inlet airflow and accelerate the discharge of the air. The air flow of the main channel test section can be controlled by the air flow diversion section, so that the air flow of the test section is changed, and finally gusts with variable sizes are formed in the test section.
Preferably, when the drainage section is a passage, the hydraulic linkage controls the movable blade on the throttle valve to open and close, and when the drainage section is a closed circuit, the movable blade stops. The flow of the main channel is changed along with the movement of the movable blade.
The preferential split door is controlled by a hydraulic device to realize opening and closing
Preferably the diverter gates are opened or closed simultaneously.
The edge of the corresponding shunt door is preferably wrapped with a sealing strip.
Preferably, the diversion section, the power section, the diffusion section, the test section, the stabilizing and contracting section, the drainage section and the diversion gate are all steel structures.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the invention provides a blowing gust wind tunnel with a drainage section, wherein the drainage section is provided with a throttle valve, the throttle valve is provided with movable blades, and the opening and closing of the movable blades on the throttle valve are controlled by hydraulic linkage to change the blocking area of the drainage section, so that the drainage flow of the power section into the drainage section to the outside is changed, and the drainage flow is determined by the opening and closing degree of the movable blades. Therefore, the air flow of the power section entering the drainage section is controlled, the purpose of indirectly controlling the air flow of the main channel test section is achieved, the air flow of the test section is changed, and accordingly gusts with variable sizes are formed in the test section.
Furthermore, the drainage section may also be provided with corner sections and multiple fan sections. The exhaust fans fixed in the exhaust section are arranged to form a plurality of fan sections, and the exhaust fans actively shunt the air flow of the power section entering the exhaust section to the outside in a suction mode, so that the aim of indirectly controlling the air flow of the main channel test section is fulfilled, the air flow of the test section is changed, and accordingly gusts with variable sizes are formed in the test section.
The invention provides a blowing type gust wind tunnel with a drainage section, which can truly simulate gusts of an atmospheric boundary layer.
Drawings
FIG. 1 is a schematic view of the overall structure of a blow-down wind tunnel with a drainage section in embodiment 1 of the present invention;
FIG. 2 is a schematic view showing the positions of the components of the power section and the drain section in embodiment 1 of the present invention;
FIG. 3 is a schematic view showing the positions of the parts of the throttle valve according to embodiment 1 of the present invention when the movable vane is opened;
FIG. 4 is a schematic view showing the positions of the parts of the throttle valve according to embodiment 1 of the present invention when the movable vane is closed;
FIG. 5 is a schematic view showing the positions of the components when the diverter door is closed in embodiment 1 of the present invention;
FIG. 6 is a schematic view showing the positions of the components when the diverter door is opened in embodiment 1 of the present invention;
FIG. 7 is a schematic view showing the overall structure of a blow-down wind tunnel with a drainage section in embodiment 2 of the present invention;
FIG. 8 is a schematic view showing the positions of the various parts of the drainage section in embodiment 2 of the present invention;
FIG. 9 is a schematic illustration of the location of a multi-sector part in embodiment 2 of the present invention;
FIG. 10 is a schematic view showing the positions of the components when the diverter door is closed in embodiment 2 of the present invention;
fig. 11 is a schematic view showing the positions of the components when the diverter door is opened in embodiment 2 of the present invention.
In the figure: 101. a power section; 102. a shunt section; 103. a diffusion section; 104. a stabilizing and shrinking section; 105. a test section; 106. an outlet diffuser section; 107. a drainage section; 108. a shunt gate; 109. a fan; 110. a front end fan cover; 111. a rear fan cover; 112. a rotation stop sheet; 113. a throttle valve; 114. a shunt port; 116. a honeycomb device; 118. fixing the air guide sleeve; 119. a movable blade; 120. a hydraulic device; 117. a damping net; 214. a corner section; 221. a plurality of fan sections.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
the embodiment of the invention provides a blowing type gust wind tunnel with a drainage section, which is used for generating gusts with different frequencies. The blowing gust wind tunnel with the drainage section according to the embodiment of the invention shown in fig. 1-6 comprises a power section 101, a diversion section 102, a diffusion section 103, a stabilizing and shrinking section 104, a test section 105 and an outlet diffusion section 106, wherein one end of the power section 101 is communicated with the outside, the other end of the power section is connected with the diversion section 102, the other end of the diversion section 102 is connected with the diffusion section 103, the diffusion section 103 is communicated with the stabilizing and shrinking section 104 and is fixedly provided with a honeycomb 116 and a damping net 117 which are parallel to each other at the communication position, the other end of the stabilizing and shrinking section 104 is connected with the test section 105, the other end of the test section 105 is connected with the outlet diffusion section 106 which is communicated with the outside, and a plurality of drainage sections 107 are also provided, wherein one end of the drainage section 107 is connected with the diversion section 102, and the other end is communicated with the outside. The junction of the discharge section 107 and the shunt section 102 is a shunt port 114, and the shunt port 114 is provided with a shunt gate 108. A throttle valve 113 is provided in the discharge section 107. The throttle valve 113 comprises a plurality of movable blades 119 and fixed air guide hoods 118, wherein the fixed air guide hoods 118 are fixedly arranged in the drainage section 107, each fixed air guide hood 118 is movably connected with the movable blade 119, and the movable blades 119 on two adjacent fixed air guide hoods 118 can influence the ventilation speed in the drainage section 107 through opening and closing. The diverter gate 108 is opened and closed by a hydraulic device 120 provided on the outer side wall of the discharge section 107. The power section 101 is further provided with a rear end fan housing 111, a rotation stop tab 112, a fan 109 and a front end fan housing 110 connected in this order, with the rear end fan housing 111 facing the outside outlet section and the front end fan housing 110 facing the splitter section 102. The power section 101, the split section 102, the diffuser section 103, the stabilizing and contracting section 104, the discharge section 107, the split gate 108, the test section 105 and the outlet diffuser section 106 are all steel structures. The total length of the wind tunnel is 60.5m, the test section is 2.5m x 2m x 16m (long), the power section phi is 5.1m x 9.1m (long), and the bypass section is 1.7m x 4.5m x 9m (long).
When the fan drives the fan 109 to rotate so as to generate air flow, when the air flow flows through the split port 114 at the communicating position of the split section 102 and the exhaust section 107 along the main channel, the hydraulic device 120 controls the split gate 108 to be opened so that part of the air flow enters the exhaust section 107, because the power of the fan 109 is fixed, the total air flow in the main channel passing through the split section 102 is fixed, after the exhaust section 107 splits a part of the air flow, the air flow in the test section 105 is reduced, when the movable blades 119 in the throttle valve 113 in the exhaust section 107 are opened, the air flow discharged to the outside in the exhaust section 107 is changed, and then the air flow in the test section 105 is changed, and finally, gusts with changed size are generated in the test section, particularly, when the gap between the movable blades 119 is reduced, the air flow discharged to the outside in the exhaust section 107 is reduced, and the air flow in the test section 105 is increased; as the gap between the movable vanes 119 becomes larger, the flow rate discharged to the outside in the discharge section 107 becomes larger, and the flow rate of the test section 105 becomes smaller. By constantly adjusting the gap between the moving blades 119, a gust of varying size is created at the test section 105. When the shunt gate 108 is closed, the air flow does not enter the drainage section 107 again and is discharged, and the gust wind tunnel is converted into a conventional wind speed blowing wind tunnel.
Example 2:
this embodiment differs from embodiment 1 in that the discharge section 107 includes a corner section 214 communicating with the shunt section 102 and a multi-fan section 221 communicating with the outside, and a plurality of discharge fans fixed in the discharge section 107 are provided at the positions where the multi-fan section 221 communicates with the corner section 214, and the ventilation speed in the discharge section 107 is controlled by the operation of the discharge fans. The diverter door 108 is opened and closed by hydraulic means 120 provided on the outer side wall of the corner section 214. A plurality of fans are fixedly arranged in the multi-fan section 221, and the position situation is shown in fig. 9. The speed of ventilation in the exhaust section 107 is controlled by the operation of the variable frequency motor on the fans in the multiple fan sections 221, thereby producing a change in the speed of the test section 105.
When the fan 109 is driven to rotate so as to generate air flow, when the air flow flows through the split port 114 at the communicating position of the split section 102 and the exhaust section 107 along the main channel, the hydraulic device 120 controls the split door 108 to be opened so that part of the air flow enters the exhaust section 107, because the power of the fan 109 is fixed, the total flow in the main channel passing through the split section 102 is fixed, after a part of the flow is split by the exhaust section 107, the flow in the test section 105 is reduced, when the exhaust fan arranged by the multiple fan sections 221 in the exhaust section 107 operates, the flow in the exhaust section 107 is changed (the exhaust fan is used for exhausting the air flow from the exhaust section 107 to the outside), and then the flow in the test section 105 is also changed, and finally gusts with variable wind speed are generated in the test section, in particular, when the exhaust fan operates at a low frequency, the flow discharged to the outside in the exhaust section 107 is reduced, and the flow in the test section 105 is increased; when the exhaust fan is operated at a high frequency, the flow rate of the exhaust section 107 discharged to the outside becomes large, and the flow rate of the test section 105 becomes small. The generation of gusts of varying size at test section 105 is achieved by frequency adjustment of the exhaust fan. When the shunt gate 108 is closed, the air flow does not enter the drainage section 107 again and is discharged, and the gust wind tunnel is converted into a conventional wind speed blowing wind tunnel.
Multi-fan instruction: can simultaneously control: the air flow of the test section is changed in high and low frequency by controlling the rotation speed of the fan set. The method can also sequentially control: by controlling the conditions of each row of the exhaust unit. When the first row of exhaust units are started, the second row and the third row are sequentially operated until all the exhaust units are started, so that the exhaust amount in the exhaust section 107 is gradually increased, the discharge amount of the air flow of the diffusion outlet section 106 to the outside is gradually reduced, and the wind speed of the test section is changed. The speed of the gust size change of the test section is changed by changing the speed of the running quantity of the exhaust unit. Compared with a single fan with higher power, the control mode of the small fans is easier to control, the response speed of starting and closing is faster, the change rate of wind speed can reach higher requirements, and the control precision is higher.
The total length of the wind tunnel is 60.5m, the test section is 2.5m x 2m x 16m (long), the power section phi is 5.1m x 9.1m (long), and the bypass section is 1.8m x 4.5m x 9m (long) (sheep corner formula).
Claims (6)
1. The utility model provides a blow-down wind-gust wind tunnel with drainage section, includes power section (101), reposition of redundant personnel section (102), diffusion section (103), stability and shrink section (104), test section (105) and export diffusion section (106), power section (101) one end communicates in the external world, and reposition of redundant personnel section (102) are connected to the other end, and diffusion section (103) are being connected to reposition of redundant personnel section (102) other end, and diffusion section (103) and stability and shrink section (104) intercommunication and the fixed honeycomb ware (116) and damping net (117) that are provided with each other parallel in intercommunication department, and stability and shrink section (104) other end are connected with test section (105), and test section (105) other end are being connected with export diffusion section (106) that external world communicates with each other, its characterized in that: in order to ensure the uniformity of the flow field in the main channel, a plurality of drainage sections (107) are also arranged, wherein one end of each drainage section (107) is connected with the corresponding flow dividing section (102), and the other end of each drainage section is communicated with the outside; the junction of the drainage section (107) and the diversion section (102) is a diversion opening (114), and a diversion gate (108) is arranged at the diversion opening (114); a throttle valve (113) is arranged in the drainage section (107); the throttle valve (113) includes a plurality of movable vane (119) and fixed kuppe (118), and wherein fixed kuppe (118) are fixed to be set up in drain section (107) to all swing joint has movable vane (119) on every fixed kuppe (118), and movable vane (119) on two adjacent fixed kuppes (118) can influence drain section (107) the blockage degree through opening and shutting to control the main passageway and divide and flow into drain section (107) back to outside exhaust drainage volume, the control mode of throttle valve (113) includes: regulating the oil pressure in a hydraulic system so as to drive the mechanical movement of a mechanical connecting rod connected with the throttle valve (113), thereby realizing the control of the opening and closing of the throttle valve (113); the exhaust section (107) comprises a corner section (214) communicated with the diversion section (102) and a plurality of fan sections (221) communicated with the outside, a plurality of exhaust fans fixed in the exhaust section (107) are arranged at the communication position of the fan sections (221) and the corner section (214), each group of fans is respectively provided with a variable frequency controller, and the running number of the fans of the exhaust fans is controlled by the variable frequency controllers to control the exhaust speed of the air flow in the exhaust section (107) to the outside.
2. A blowing wind tunnel with drainage section according to claim 1, wherein: the split gate (108) is opened and closed by a hydraulic device (120) arranged on the outer side wall of the drainage section (107).
3. A blowing wind tunnel with drainage section according to claim 1, wherein: the diverter gate (108) is opened and closed by a hydraulic device (120) disposed on the outer side wall of the corner section (214).
4. A blowing wind tunnel with drainage section according to claim 3, wherein: when the shunt door (108) is closed, the drainage section (107) stops running; when the shunt gate (108) is opened, the drainage section (107) starts to run.
5. A blowing wind tunnel with drainage section according to claim 1, wherein: the power section (101) is further provided with a rear end fan cover (111), a rotation stopping sheet (112), a fan (109) and a front end fan cover (110) which are sequentially connected, the rear end fan cover (111) faces the external outlet section, and the front end fan cover (110) faces the diversion section (102).
6. A blowing wind tunnel with drainage section according to claim 1, wherein: the drainage sections (107) are arranged in two groups and are symmetrically arranged on two sides of the power section (101) or two sides of the stabilizing and contracting section (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910225934.8A CN109799062B (en) | 2019-03-24 | 2019-03-24 | Blowing type wind-blowing wind tunnel with drainage section |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910225934.8A CN109799062B (en) | 2019-03-24 | 2019-03-24 | Blowing type wind-blowing wind tunnel with drainage section |
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| CN109799062A CN109799062A (en) | 2019-05-24 |
| CN109799062B true CN109799062B (en) | 2024-02-06 |
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| CN113252293B (en) * | 2021-06-08 | 2021-10-01 | 中国空气动力研究与发展中心低速空气动力研究所 | Gas rectification structure inside box body |
| CN113188752B (en) * | 2021-06-11 | 2022-02-22 | 日照坤仑智能科技有限公司 | Unsteady vertical wind tunnel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB836385A (en) * | 1957-01-15 | 1960-06-01 | Metallbau Semler G M B H | Wind tunnel |
| US5435175A (en) * | 1991-11-29 | 1995-07-25 | Mercedes Benz Ag | Wind tunnel having a free jet test section for simulating wind direction fluctuations |
| CN104879276A (en) * | 2015-06-02 | 2015-09-02 | 李进福 | Air energy wind tunnel power generation device |
| CN107436220A (en) * | 2017-07-19 | 2017-12-05 | 国网福建省电力有限公司 | A kind of reverse-flow type frequency control multi-fan array wind-tunnel and its test method |
| CN108303228A (en) * | 2017-08-08 | 2018-07-20 | 北京空天技术研究所 | A kind of boundary layer fluidised form control device and method of wind tunnel test |
| CN207946210U (en) * | 2018-02-08 | 2018-10-09 | 百林机电科技（苏州）有限公司 | A kind of reflux duplex wind tunnel device |
| CN209372360U (en) * | 2019-03-24 | 2019-09-10 | 国电环境保护研究院有限公司 | It is a kind of to blow formula gust wind tunnel with drainage section |
-
2019
- 2019-03-24 CN CN201910225934.8A patent/CN109799062B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB836385A (en) * | 1957-01-15 | 1960-06-01 | Metallbau Semler G M B H | Wind tunnel |
| US5435175A (en) * | 1991-11-29 | 1995-07-25 | Mercedes Benz Ag | Wind tunnel having a free jet test section for simulating wind direction fluctuations |
| CN104879276A (en) * | 2015-06-02 | 2015-09-02 | 李进福 | Air energy wind tunnel power generation device |
| CN107436220A (en) * | 2017-07-19 | 2017-12-05 | 国网福建省电力有限公司 | A kind of reverse-flow type frequency control multi-fan array wind-tunnel and its test method |
| CN108303228A (en) * | 2017-08-08 | 2018-07-20 | 北京空天技术研究所 | A kind of boundary layer fluidised form control device and method of wind tunnel test |
| CN207946210U (en) * | 2018-02-08 | 2018-10-09 | 百林机电科技（苏州）有限公司 | A kind of reflux duplex wind tunnel device |
| CN209372360U (en) * | 2019-03-24 | 2019-09-10 | 国电环境保护研究院有限公司 | It is a kind of to blow formula gust wind tunnel with drainage section |
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| CN109799062A (en) | 2019-05-24 |
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