CN209485654U - A kind of direct current suction gust wind tunnel with tune stream section - Google Patents
A kind of direct current suction gust wind tunnel with tune stream section Download PDFInfo
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- CN209485654U CN209485654U CN201920374952.8U CN201920374952U CN209485654U CN 209485654 U CN209485654 U CN 209485654U CN 201920374952 U CN201920374952 U CN 201920374952U CN 209485654 U CN209485654 U CN 209485654U
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- 238000012360 testing method Methods 0.000 claims abstract description 31
- 230000008602 contraction Effects 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims description 9
- 238000013519 translation Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model discloses a kind of with the direct current suction gust wind tunnel for adjusting stream section, its key points of the technical solution are that including outlet section, power section, diffuser, test section, contraction section and stable section；Described power section one end connects the outlet section communicated with the outside world, the power section other end is connected to diffuser, test section one end is connect with diffuser, the other end is connect with contraction section, contraction section side is connected to stable section, and tune stream section is provided on diffuser, can quickly adjust the wind speed of test section, natural wind is preferably simulated, more true reasonable experimental data is obtained.
Description
Technical field
The utility model relates to a kind of gust wind tunnels, more specifically, it relates to a kind of with the direct current suction for adjusting stream section
Gust wind tunnel.
Background technique
Boundary layer wind tunnel plays increasingly important role in the research in Wind Engineering field.Boundary layer wind tunnel has mould
The ability of quasi- atmospheric boundary laminar flow can be the Diffusion Law of Pollution Study object and long-span bridge, skyscraper, tower etc.
The safe design research of many other unique textures provides technical support.
However, when occupying leading role for some extreme weather event (Gust front, hurricane etc.) unstable state air-flows,
Common boundaries layer wind-tunnel lacks the ability for simulating these event transient effects.Therefore, it is necessary to a kind of battle array wind effects of capable of generating
Atmospheric boundary layer wind tunnel.
In order to make the air-flow of test section generate battle array effect, traditional method, such as the used mechanical rocking grate lattice of forefathers
Or airfoil bodies have a disadvantage, atmospheric boundary layer wind tunnel is that wedge and roughness element are added in the well-proportioned wind-tunnel in flow field to simulate
The Wind outline of atmospheric boundary layer, if adding a grid again on this basis, the wind speed and turbulivity of experimental section will be very
It is difficult to control, so that the wind speed size of experimental section is all unable to control.Battle array is generated using Frequency Converter Control rotation speed of the fan is changed, is needed
Fan is unable to reach the optimum condition of operating, and requires electrical power required for sudden change.Simultaneously because the fan of power section
Be relatively large in diameter, usually have several meters long, it means that the rotary inertia of fan is very big, so fan revolving speed adjustment compare
Slowly, so that generating velocity variations required time scale (changing the 25% of test section speed in 1~5s) can not be achieved.
And the rate that wind speed in natural environment changes all be it is instantaneous, therefore, current wind-tunnel can not simulate natural wind completely.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of with the direct current suction for adjusting stream section
Formula gust wind tunnel can simulate natural wind.
To achieve the above object, the utility model provides following technical solution:
A kind of direct current suction gust wind tunnel with tune stream section, including outlet section, power section, diffuser, test section, contraction
Section and stable section；Described power section one end connects the outlet section communicated with the outside world, and the power section other end is connected to diffuser, tests
Duan Yiduan is connect with diffuser, and the other end is connect with contraction section, and contraction section side is connected to stable section, and tune is provided on diffuser
Flow section.
Further, adjusting stream section includes shutter device and electrically operated gate.
Further, shutter device is arranged on wind-tunnel outer wall.
Further, electrically operated gate is located on the inside of shutter device.
Further, multiple blades are provided on shutter device, air-flow can be flowed from the extraneous gap by between blade
Enter into diffuser, electrically operated gate can be moved in translation along wind-tunnel inner wall.
Further, tune stream segment number is multiple, is symmetrical arranged on the side wall of diffuser.
Further, adjusting stream segment number is two.
Further, the inside of stable section is connected to twice damping screen, and the side of damping screen is adjacent with honeycomb, honeycomb
It is in communication with the outside.
Further, it is provided with loading disk in test section, is used for bearing test model.
Further, the loading disk is driven by a motor and can be rotated in test section, for carrying it
Test model forms different angles relative to wind direction.
In conclusion the utility model has the following beneficial effects:
1, structure is simple, construction cost is relatively low；
2, due to adjusting stream section color setting, this gust wind tunnel can quickly adjust the wind speed of test section, and preferably simulation is come from
Right wind obtains more true reasonable experimental data.
Detailed description of the invention
Fig. 1 is each modular construction schematic diagram of wind-tunnel in embodiment 1；
Fig. 2 is tune stream segment structure schematic diagram when electrically operated gate is opened in embodiment 1；
Fig. 3 is tune stream segment structure schematic diagram when electrically operated gate is closed in embodiment 1.
In figure: 101, stable section；102, contraction section；103, test section；104, stream section is adjusted；105, diffuser；106, power
Section；107, outlet section；109, fan；110, front end machine cover；111, backend machine cover；112, spin-ended；113, shutter device；
114, electrically operated gate；116, honeycomb；117, damping screen.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It is a kind of with adjust stream section direct current suction gust wind tunnel, referring to Fig.1 comprising outlet section 107, power section 106,
Diffuser 105 adjusts stream section 104, test section 103, contraction section 102 and stable section 101,106 one end of power section connection with it is outer
The outlet section 107 that boundary communicates, 106 other end of power section are connected to diffuser 105, and tune stream section 104 is provided on diffuser 105,
103 one end of test section is connect with diffuser 105, and the other end is connect with contraction section 102, and 102 side of contraction section is connected to stable section
101, the other side of stable section 101 is connected to twice damping screen 117, and the side of damping screen is connected with honeycomb 116, honeycomb
116 are in communication with the outside.
Working principle is as follows:
Power section 106 is one section of hole body for being equipped with driving fan 109, and power section 106 includes front end machine cover 110, wind
Fan 109, spin-ended 112, backend machine cover 111.Blower drives the rotation of fan 109 to be able to generate gas flowing, it is established that test
Stable flow field in section.Air-flow flows through stable section 101 along air inlet, due to the direction of air-flow and speed be all it is non-uniform,
The rapid degree of its air-flow is also relatively high, or even there is also the whirlpools of large scale in the gas flow, therefore in the stable section of air-flow
101 are provided with the fairings such as honeycomb 116, damping screen 117.The effect of honeycomb 116 and damping screen 117 is to become air-flow
It obtains uniformly, rapid degree substantially reduces, and guarantees the flow quality of 102 entrance of contraction section and test section 103.102 type face of contraction section goes out
The air-flow that the design smaller than entrance of the radius of curvature of mouth makes uniformly is accelerated, and when air-flow is flowed along contraction section 102, Dong Bishang is not
It separates.By the air flow direction diffuser 105 of test section 103, its effect of diffuser 105 is that the kinetic energy of air-flow is changed into
Pressure energy, to reduce the power loss of wind-tunnel.Tune stream section 104 is provided on diffuser 105, adjusting stream section 104 includes shutter device
113 and electrically operated gate 114, blade is provided on shutter device 113, and outer gas stream can be flowed into from blade, and electrically operated gate 114 is entity
Door.Electrically operated gate 114 can be moved in translation.Electrically operated gate 114 is connected with cogged motor, drives rotary shaft to turn by motor
It moves to realize the opening and closing for controlling the electrically operated gate.When electrically operated gate 114 is to 113 medial movement of shutter device, as shown in figure 3,
Electrically operated gate 114 and shutter device 113 form closed space.When electrically operated gate 114 is opened, as shown in Fig. 2, outer gas stream can be from
Shutter device 113 flows into, and the speed of fluid is controlled by the opening and closing of control electrically operated gate 114.Finally, air-flow is from outlet section 107
Outflow.
When test, air-flow is flowed into from air inlet, makes air-flow become more uniformly, then to pass through contraction by honeycomb 116
Section 102 improves air velocity, enters test section 103 later, reaches out after air-flow passes through test section 103 through diffuser 105
Mouth section 107 is finally entered in atmosphere by the stream of outlet section 107.It is provided with loading disk in test section 103, is used for bearing test mould
Type, loading disk, which is driven by a motor, to be rotated in test section 103, and the test model for carrying it is relative to wind
The angle different to formation.
Claims (10)
1. a kind of with the direct current suction gust wind tunnel for adjusting stream section, including outlet section (107), power section (106), diffuser
(105), test section (103), contraction section (102) and stable section (101)；Power section (106) one end connection communicates with the outside world
Outlet section (107), power section (106) other end is connected to diffuser (105), test section (103) one end and diffuser (105)
Connection, the other end are connect with contraction section (102), and contraction section (102) side is connected to stable section (101), it is characterised in that: diffusion
Tune stream section (104) is provided in section (105).
2. according to claim 1 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: the tune flows section
It (104) include shutter device (113) and electrically operated gate (114).
3. according to claim 2 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: shutter device
(113) it is arranged on wind-tunnel outer wall.
4. according to claim 3 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: electrically operated gate (114)
On the inside of shutter device (113).
5. according to claim 4 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: shutter device
(113) multiple blades are provided on, air-flow can be flowed into diffuser (105) from the external world by the gap between blade, electricity
Dynamic door (114) can be moved in translation along wind-tunnel inner wall.
6. according to claim 5 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: the tune flows section
(104) quantity is multiple, is symmetrical arranged on the side wall of diffuser (105).
7. according to claim 6 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: the tune flows section
(104) quantity is two.
8. according to claim 1 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: stable section (101)
Inside be connected to twice damping screen (117), the side of damping screen (117) is adjacent with honeycomb (116), honeycomb (116) with
External world's connection.
9. according to claim 1 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: test section (103)
In be provided with loading disk, be used for bearing test model.
10. according to claim 9 with the direct current suction gust wind tunnel for adjusting stream section, it is characterised in that: the loading circle
Disk, which is driven by a motor, to be rotated in test section (103), and the test model for carrying it is formed relative to wind direction
Different angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920374952.8U CN209485654U (en) | 2019-03-24 | 2019-03-24 | A kind of direct current suction gust wind tunnel with tune stream section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920374952.8U CN209485654U (en) | 2019-03-24 | 2019-03-24 | A kind of direct current suction gust wind tunnel with tune stream section |
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| Publication Number | Publication Date |
|---|---|
| CN209485654U true CN209485654U (en) | 2019-10-11 |
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ID=68134645
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920374952.8U Active CN209485654U (en) | 2019-03-24 | 2019-03-24 | A kind of direct current suction gust wind tunnel with tune stream section |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799060A (en) * | 2019-03-24 | 2019-05-24 | 国电环境保护研究院有限公司 | A kind of direct current suction gust wind tunnel with tune stream section |
-
2019
- 2019-03-24 CN CN201920374952.8U patent/CN209485654U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799060A (en) * | 2019-03-24 | 2019-05-24 | 国电环境保护研究院有限公司 | A kind of direct current suction gust wind tunnel with tune stream section |
| CN109799060B (en) * | 2019-03-24 | 2024-02-06 | 国电环境保护研究院有限公司 | Direct current suction type gust wind tunnel with flow regulating section |
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