CN209878259U - Integrated wind tunnel for simulating tornado and downburst - Google Patents
Integrated wind tunnel for simulating tornado and downburst Download PDFInfo
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- CN209878259U CN209878259U CN201920757673.XU CN201920757673U CN209878259U CN 209878259 U CN209878259 U CN 209878259U CN 201920757673 U CN201920757673 U CN 201920757673U CN 209878259 U CN209878259 U CN 209878259U
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Abstract
The utility model discloses an integrated wind tunnel for simulating tornado and downburst storm, which comprises a wind tunnel runner, wherein a simulation wind port is arranged on the wind tunnel runner, and a simulation device is arranged outside the simulation wind port; the simulation device comprises a central air duct, a first guide air duct and a second guide air duct, wherein a simulation fan is arranged in the central air duct; the air inlet end and the air outlet end of the first guide air channel are communicated with the air outlet end and the air inlet end of the simulation fan, and a first valve is arranged between the air inlet end of the first guide air channel and the air outlet end of the simulation fan; the air inlet end of the second guide air duct is communicated with the air outlet end of the simulation fan, and a second valve is arranged between the air inlet end of the second guide air duct and the air outlet end of the simulation fan; a second air inlet channel is arranged on the central air channel and is positioned between the air inlet end of the simulation fan and the air outlet end of the first diversion air channel, and a third valve is arranged on the second air inlet channel; and a fourth valve positioned between the second air inlet channel and the air outlet end of the first diversion air channel is arranged on the central air channel.
Description
Technical Field
The utility model belongs to the technical field of the wind-tunnel, specific be an integrated wind-tunnel of simulation tornado and downbeat torrential flow.
Background
Chinese patent publication No. CN106918439B discloses a tornado simulator based on wind tunnel, mainly comprising a wind tunnel, a wind tower, a guide plate, a motor, a fairing, a fan rotor, a honeycomb device and a lifting platform; the wind tower is integrally of a barrel structure and is arranged on the outer side of the upper wall of the wind tunnel experiment section; the wind tower mainly comprises a rectifying device and a flow guide device; the fairing comprises a fairing and a honeycomb device; a motor and a fan rotor are arranged in the fairing; the flow guide device is mainly a flow guide plate for generating a vortex wind field; the honeycomb device is used for rectifying and is parallel to the axis of the motor; the elevating platform is arranged between the upper and lower tunnel walls of the wind tunnel experimental section.
Chinese patent application publication No. CN107655656A discloses a downburst simulation apparatus, comprising: the device comprises a compressed air tank, a support frame, a buffer mechanism and test equipment; the compressed air tank is fixed above the ground through the support frame; the air outlet end of the compressed air tank is downward and vertical to the ground; the first end of the buffer mechanism is connected with one end of the compressed air tank far away from the air outlet end, and the second end of the buffer mechanism is connected with the support frame and used for relieving the recoil generated when the compressed air tank releases air; the test equipment is arranged between the air outlet end of the compressed air tank and the ground.
That is, in the prior art, both the tornado simulator and the downburst simulator can only simulate tornado and downburst independently. When a downburst is required to be simulated after tornado simulation in a wind tunnel test, a tornado simulator needs to be detached and replaced by a downburst simulator, so that the test interval is lengthened, and the operation is complicated; if a tornado simulator and a downburst simulator are installed in the wind tunnel test device at the same time, the investment cost is increased.
Disclosure of Invention
In view of this, an object of the present invention is to provide an integrated wind tunnel for simulating tornado and downburst, which uses the same simulator to simulate both tornado and downburst.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an integrated wind tunnel for simulating tornadoes and downburst flows comprises a wind tunnel flow channel, wherein a simulation wind port is arranged on the side wall of one side of the wind tunnel flow channel, and a simulation device for simulating the tornadoes and the downburst flows is arranged outside the simulation wind port;
the simulation device comprises a central air duct, a first guide air duct and a second guide air duct, and a simulation fan is arranged in the central air duct;
the air inlet end of the first guide air channel is communicated with the air outlet end of the simulation fan, the air outlet end of the first guide air channel is communicated with the air inlet end of the simulation fan, and a first valve is arranged between the air inlet end of the first guide air channel and the air outlet end of the simulation fan;
the air inlet end of the second guide air channel is communicated with the air outlet end of the simulation fan, and a second valve is arranged between the air inlet end of the second guide air channel and the air outlet end of the simulation fan; the air outlet end of the second diversion air duct is arranged around one end of the central air duct, which is back to the air outlet end of the simulation fan, or the air outlet end of the second diversion air duct is provided with an annular air outlet which is covered outside one end of the central air duct, which is back to the air outlet end of the simulation fan;
a second air inlet channel is arranged on the central air channel and is positioned between the air inlet end of the simulation fan and the air outlet end of the first diversion air channel, and a third valve is arranged on the second air inlet channel;
the central air duct is provided with a fourth valve positioned between the second air inlet channel and the air outlet end of the first diversion air duct;
and one end of the central air duct, which is back to the air outlet end of the simulation fan, is the nearest end which is closest to the axis of the wind tunnel flow channel.
Further, the first guide air duct is positioned between the central air duct and the second guide air duct; and a fifth valve is arranged at the air outlet end of the first diversion air duct.
Furthermore, the number of the first guide air ducts is at least two, and the first guide air ducts are annularly and uniformly distributed by taking the axis of the central air duct as a central line; the second air inlet channels are uniformly distributed in an annular mode relative to the axis of the central air duct.
Furthermore, the air outlet ends of the second diversion air ducts are annularly and uniformly distributed on the periphery of the central air duct, or the annular air outlet and the central air duct are coaxially arranged.
Furthermore, a honeycomb device is arranged at the end part of one end, closest to the wind tunnel flow channel, of the central wind tunnel.
Furthermore, the corners of the central air duct, the first guide air duct and the second guide air duct are respectively provided with a guide plate.
Further, the simulation fan comprises a motor and an impeller arranged on an output shaft of the motor; and a flow guide cover is also arranged outside the motor.
Furthermore, the simulation air port is arranged on the top surface of the wind tunnel flow channel, and the axis of the central air channel is vertical to the axis of the wind tunnel flow channel.
Furthermore, a test bed positioned right below the simulation air port is arranged in the wind tunnel flow channel, and a lifting adjusting mechanism for adjusting the position height of the test bed is arranged below the test bed.
Further, the wind tunnel flow channel is a straight-flow channel, and a fan for generating background wind is arranged in the straight-flow channel; or, the wind tunnel flow channel is a backflow flow channel, the backflow flow channel comprises a first wind tunnel flow channel section and a second wind tunnel flow channel section, the first wind tunnel flow channel section and the second wind tunnel flow channel section are connected end to form the wind tunnel flow channel capable of realizing air flow circulation, a fan used for generating background air is arranged in the first wind tunnel flow channel section, and the simulation air port is arranged on the top surface of the second wind tunnel flow channel section.
The utility model discloses the principle of simulation tornado and the integrated wind-tunnel of downbeat torrent does:
1) the method for simulating tornado comprises the following steps: closing the first valve and the third valve, opening the second valve and the fourth valve, starting the simulation fan, enabling airflow to enter the simulation fan from one end of the central air duct, which is back to the air outlet end of the simulation fan, and the airflow to pass through the simulation fan and then be discharged through the second airflow air duct, enabling the airflow discharged through the second airflow air duct to enter the simulation fan from one end of the central air duct, which is back to the air outlet end of the simulation fan, so as to form airflow circulation, and forming simulated tornado at one end of the central air duct, which is back to the air outlet end of the simulation fan;
2) the method for simulating downburst is as follows: the method for simulating downburst flow comprises the following steps: close second valve and fourth valve, open first valve and third valve, start the simulation fan makes the air current follow second inlet air channel enters into the air inlet end of simulation fan, the air current warp the simulation fan enters into in the first water conservancy diversion wind channel, the air current in the first water conservancy diversion wind channel flows back once more center wind channel dorsad the one end of simulation fan air-out end to form the simulated downbeat torrent.
The beneficial effects of the utility model reside in that:
the utility model discloses the integrated wind-tunnel of simulation tornado and downburst flows, through adopting analogue means to set up central wind channel, first water conservancy diversion wind channel and second water conservancy diversion wind channel on analogue means, close first water conservancy diversion wind channel and second inlet air channel and open the second and imitate the wind channel, can imitate the tornado; closing the second diversion air channel, and opening the first diversion air channel and the second air inlet channel, namely simulating downburst flow; namely, the utility model discloses the integrated wind-tunnel of simulation tornado and downburst flows both can simulate tornado, also can simulate downburst flows.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:
FIG. 1 is a schematic structural view of an integrated wind tunnel embodiment for simulating tornadoes and downburst flows according to the present invention;
FIG. 2 is a schematic diagram of a simulation apparatus;
fig. 3 is a schematic structural diagram of a wind tunnel flow channel as a backflow flow channel.
Description of reference numerals:
1-a central air duct; 2-a first diversion air duct; 3-a second diversion air duct; 4-a first valve; 5-a second valve; 6-a second air inlet channel; 7-a third valve; 8-a fourth valve; 9-a fifth valve; 10-a honeycomb device; 11-a motor; 12-an impeller; 13-a dome; 14-a baffle; 15-wind tunnel flow channel; 15 a-a first wind tunnel channel section; 15 b-a second wind tunnel channel section; 16-simulated tuyere; 17-a simulation device; 18-test stand; 19-a lifting adjustment mechanism; 20-a fan; 21-wind tunnel deflector.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1, it is a schematic structural diagram of an embodiment of the integrated wind tunnel for simulating tornado and downburst of the present invention. The integrated wind tunnel for simulating tornado and downburst flow comprises a wind tunnel flow passage 15, wherein a simulation air port 16 is arranged on the side wall of one side of the wind tunnel flow passage 15, and a simulation device 17 for simulating tornado and downburst flow is arranged outside the simulation air port 16.
The simulation device 17 of this embodiment includes a central air duct 1, a first diversion air duct 2 and a second diversion air duct 3, and a simulation fan is installed in the central air duct 1. Specifically, the first guide air duct 2 of the present embodiment is located between the central air duct 1 and the second guide air duct 3. The simulation fan of the embodiment comprises a motor 11 and an impeller 12 arranged on an output shaft of the motor 11; a flow guide cover 13 is arranged outside the motor 11. Specifically, one end of the central air duct 1, which is back to the air outlet end of the simulation fan, is the nearest end closest to the axis of the wind tunnel flow channel 15.
The air inlet end of the first diversion air duct 2 of this embodiment is communicated with the air outlet end of the simulation fan, the air outlet end of the first diversion air duct 2 is communicated with the air inlet end of the simulation fan, and a first valve 4 is arranged between the air inlet end of the first diversion air duct 2 and the air outlet end of the simulation fan. Preferably, the first guide air duct 2 is annularly and uniformly distributed by taking the axis of the central air duct 1 as a central line and is at least two, and the first guide air duct 2 of the embodiment is annularly and uniformly distributed by taking the axis of the central air duct 1 as a central line and is at least 4, so that the resistance can be reduced by effectively dispersing air flow, and the air flow distribution is more uniform. The air outlet end of the first guide air duct 2 of this embodiment is provided with the fifth valve 9, which can prevent the first guide air duct 2 from affecting the air flow in the central air duct 1.
In the embodiment, the air inlet end of the second diversion air channel 3 is communicated with the air outlet end of the simulation fan, and a second valve 5 is arranged between the air inlet end of the second diversion air channel 3 and the air outlet end of the simulation fan; the air outlet end of the second diversion air duct 3 is arranged around the end, back to the air outlet end of the simulation fan, of the central air duct 1, or the air outlet end of the second diversion air duct 3 is provided with an annular air outlet which is covered outside the end, back to the air outlet end of the simulation fan, of the central air duct 1. Specifically, the air outlet ends of the second diversion air ducts 3 are annularly and uniformly distributed around the central air duct 1, or the annular air outlet and the central air duct 1 are coaxially arranged. The air outlet end of the second diversion air duct 3 of this embodiment is provided with an annular air outlet.
The central air duct 1 is provided with a second air inlet channel 6 between the air inlet end of the simulation fan and the air outlet end of the first diversion air duct 2, and the second air inlet channel 6 is provided with a third valve 7. Preferably, the second air inlet channels 6 are uniformly distributed in a ring shape relative to the axis of the central air duct 1, so that the distribution of the air inlet flow is more uniform.
The central air duct 1 is provided with a fourth valve 8 located between the second air inlet channel 6 and the air outlet end of the first diversion air duct 2. The axis of the central air duct 1 of this embodiment is located the vertical direction, and the air-out end of the simulation fan is located the top of its air inlet end, and the lowermost end of the central air duct 1 is equipped with the honeycomb device 10. Preferably, the corners of the central air duct 1, the first guide air duct 2 and the second guide air duct 3 are respectively provided with a guide plate 14 for guiding air flow.
Further, the simulated tuyere 16 of the present embodiment is arranged on the top surface of the wind tunnel flow channel 15, and the axis of the central wind tunnel 1 of the present embodiment is perpendicular to the axis of the wind tunnel flow channel 15. In the wind tunnel flow passage 15 of this embodiment, a test bed 18 located right below the simulated tuyere 16 is provided, and a lifting adjusting mechanism 19 for adjusting the height of the test bed 18 is provided below the test bed 18. The lifting adjusting mechanism 19 can be realized by various existing schemes, and will not be described in a repeated way.
Further, the wind tunnel flow passage 15 may be a straight flow passage, and a fan for generating background wind is disposed in the straight flow passage. The wind tunnel flow channel 15 may also be a backflow flow channel, the backflow flow channel includes a first wind tunnel flow channel section 15a and a second wind tunnel flow channel section 15b, the first wind tunnel flow channel section 15a and the second wind tunnel flow channel section 15b are connected end to form the wind tunnel flow channel 15 capable of realizing air flow circulation, a fan 20 for generating background wind is arranged in the first wind tunnel flow channel section 15a, a simulation wind gap 16 is arranged on the top surface of the second wind tunnel flow channel section 5b, and corner positions between the first wind tunnel flow channel section 15a and the second wind tunnel flow channel section 15b are respectively provided with a flow guide plate 21, as shown in fig. 3, the wind tunnel flow channel 15 of this embodiment is a backflow flow channel.
The principle of the integrated wind tunnel for simulating tornadoes and downburst flows in the embodiment is as follows:
1) the method for simulating tornado comprises the following steps: closing the first valve 4 and the third valve 7, opening the second valve 5 and the fourth valve 8, starting the simulation fan, enabling airflow to enter the simulation fan from one end of the central air duct 1 back to the air outlet end of the simulation fan, discharging the airflow through the second airflow air duct 3 after the airflow passes through the simulation fan, enabling the airflow discharged through the second airflow air duct 3 to enter the simulation fan through one end of the central air duct 1 back to the air outlet end of the simulation fan, forming airflow circulation, and forming simulated tornado at one end of the central air duct 1 back to the air outlet end of the simulation fan;
2) the method for simulating downburst is as follows: and closing the second valve 5 and the fourth valve 8, opening the first valve 4 and the third valve 7, starting the simulation fan, enabling the airflow to enter the air inlet end of the simulation fan from the second air inlet channel 6, enabling the airflow to enter the first guide air duct 2 through the simulation fan, and enabling the airflow in the first guide air duct 2 to flow back to one end of the central air duct 1 back to the air outlet end of the simulation fan again to form simulated downburst flow.
In the integrated wind tunnel for simulating tornado and downburst in the embodiment, the tornado can be simulated by adopting the simulation device, arranging the central air duct, the first guide air duct and the second guide air duct on the simulation device, closing the first guide air duct and the second air inlet duct and opening the second simulation air duct; closing the second diversion air channel, and opening the first diversion air channel and the second air inlet channel, namely simulating downburst flow; namely, the utility model discloses the integrated wind-tunnel of simulation tornado and downburst flows both can simulate tornado, also can simulate downburst flows.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (10)
1. The utility model provides a simulation tornado and integrated wind-tunnel of downbeat torrent, includes wind-tunnel runner (15), its characterized in that: a simulation air port (16) is arranged on the side wall of one side of the wind tunnel flow passage (15), and a simulation device (17) for simulating tornadoes and downburst storms is arranged outside the simulation air port (16);
the simulation device (17) comprises a central air duct (1), a first guide air duct (2) and a second guide air duct (3), and a simulation fan is arranged in the central air duct (1);
the air inlet end of the first diversion air channel (2) is communicated with the air outlet end of the simulation fan, the air outlet end of the first diversion air channel (2) is communicated with the air inlet end of the simulation fan, and a first valve (4) is arranged between the air inlet end of the first diversion air channel (2) and the air outlet end of the simulation fan;
the air inlet end of the second diversion air channel (3) is communicated with the air outlet end of the simulation fan, and a second valve (5) is arranged between the air inlet end of the second diversion air channel (3) and the air outlet end of the simulation fan; the air outlet end of the second diversion air duct (3) is arranged around one end of the central air duct (1) back to the air outlet end of the simulation fan, or the air outlet end of the second diversion air duct (3) is provided with an annular air outlet which is covered outside one end of the central air duct (1) back to the air outlet end of the simulation fan;
a second air inlet channel (6) positioned between the air inlet end of the simulation fan and the air outlet end of the first diversion air channel (2) is arranged on the central air channel (1), and a third valve (7) is arranged on the second air inlet channel (6);
a fourth valve (8) positioned between the second air inlet channel (6) and the air outlet end of the first diversion air channel (2) is arranged on the central air channel (1);
one end of the central air duct (1), which is back to the air outlet end of the simulation fan, is the nearest end which is closest to the axis of the wind tunnel flow channel (15).
2. The integrated wind tunnel of claim 1 for simulating a tornado and downstorm flow, wherein: the first guide air duct (2) is positioned between the central air duct (1) and the second guide air duct (3); and a fifth valve (9) is arranged at the air outlet end of the first diversion air duct (2).
3. The integrated wind tunnel of claim 1 for simulating a tornado and downstorm flow, wherein: the number of the first guide air ducts (2) is at least two, and the first guide air ducts are annularly and uniformly distributed by taking the axis of the central air duct (1) as a central line; the second air inlet channels (6) are uniformly distributed in an annular shape relative to the axis of the central air duct (1).
4. The integrated wind tunnel of claim 1 for simulating a tornado and downstorm flow, wherein: the air outlet ends of the second diversion air ducts (3) are annularly and uniformly distributed on the periphery of the central air duct (1), or the annular air outlet and the central air duct (1) are coaxially arranged.
5. The integrated wind tunnel of claim 1 for simulating a tornado and downstorm flow, wherein: and a honeycomb device (10) is arranged at the end part of one end of the central air duct (1) closest to the wind tunnel flow channel (15).
6. The integrated wind tunnel of claim 1 for simulating a tornado and downstorm flow, wherein: and the corners of the central air duct (1), the first guide air duct (2) and the second guide air duct (3) are respectively provided with a guide plate (14).
7. The integrated wind tunnel of claim 1 for simulating a tornado and downstorm flow, wherein: the simulation fan comprises a motor (11) and an impeller (12) arranged on an output shaft of the motor (11); and a flow guide cover (13) is arranged outside the motor (11).
8. An integrated wind tunnel according to any one of claims 1 to 7 for simulating a tornado and downburst flow, wherein: the simulation air port (16) is arranged on the top surface of the wind tunnel flow channel (15), and the axis of the central air channel (1) is perpendicular to the axis of the wind tunnel flow channel (15).
9. The integrated wind tunnel of claim 8 for simulating a tornado and downstorm flow, wherein: a test bed (18) which is positioned right below the simulation air port (16) is arranged in the wind tunnel flow channel (15), and a lifting adjusting mechanism (19) for adjusting the position height of the test bed (18) is arranged below the test bed (18).
10. The integrated wind tunnel of claim 9 for simulating a tornado and downstorm flow, wherein: the wind tunnel flow passage (15) is a straight-flow passage, and a fan for generating background wind is arranged in the straight-flow passage; or, the wind tunnel flow channel (15) is a backflow type flow channel, the backflow type flow channel comprises a first wind tunnel flow channel section and a second wind tunnel flow channel section, the first wind tunnel flow channel section and the second wind tunnel flow channel section are connected end to form the wind tunnel flow channel (15) capable of achieving airflow circulation, a fan used for generating background air is arranged in the first wind tunnel flow channel section, and the simulation air port is arranged on the top surface of the second wind tunnel flow channel section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757673.XU CN209878259U (en) | 2019-05-23 | 2019-05-23 | Integrated wind tunnel for simulating tornado and downburst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920757673.XU CN209878259U (en) | 2019-05-23 | 2019-05-23 | Integrated wind tunnel for simulating tornado and downburst |
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| Publication Number | Publication Date |
|---|---|
| CN209878259U true CN209878259U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920757673.XU Expired - Fee Related CN209878259U (en) | 2019-05-23 | 2019-05-23 | Integrated wind tunnel for simulating tornado and downburst |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031178A (en) * | 2019-05-23 | 2019-07-19 | 重庆大学 | A kind of integrated wind-tunnel for simulating cyclone and downburst |
| CN114160214A (en) * | 2021-11-10 | 2022-03-11 | 中国空气动力研究与发展中心空天技术研究所 | Unmanned aerial vehicle extreme environment simulation laboratory |
-
2019
- 2019-05-23 CN CN201920757673.XU patent/CN209878259U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031178A (en) * | 2019-05-23 | 2019-07-19 | 重庆大学 | A kind of integrated wind-tunnel for simulating cyclone and downburst |
| CN110031178B (en) * | 2019-05-23 | 2023-11-24 | 重庆大学 | Integrated wind tunnel simulating tornado and downburst |
| CN114160214A (en) * | 2021-11-10 | 2022-03-11 | 中国空气动力研究与发展中心空天技术研究所 | Unmanned aerial vehicle extreme environment simulation laboratory |
| CN114160214B (en) * | 2021-11-10 | 2023-10-27 | 中国空气动力研究与发展中心空天技术研究所 | Unmanned aerial vehicle extreme environment simulation laboratory |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20200523 |