A multi-physics field coupling environment simulation device

Abstract

The present invention belongs to the technical field of wind tunnel simulation, and specifically is a multi-physics field coupling environment simulation device, comprising a base, a simulation cabin fixedly connected to the upper surface of the base, a plurality of horizontal flow fans arranged on one side wall of the simulation cabin, a plurality of rotating flow fans arranged around the simulation cabin are installed on the upper surface of the base, and a plurality of vertical flow fans are arranged on the top of the simulation cabin. The multi-physics field coupling environment simulation device of the present invention is used to simulate a complex environment of three-dimensional multi-physics field coupling under different weather conditions, and increase the diversity of wind tunnel tests.

Description

Technical Field

[0001] The invention belongs to the technical field of wind tunnel simulation, and in particular relates to a multi-physical field coupling environment simulation device. Background Art

[0002] Low-altitude flying equipment is increasingly being used in daily life, such as multi-rotor drones, flying cars, or future urban aircraft, which are also hot topics and research directions. When low-altitude flying equipment is taking off or flying, the surrounding wind environment is an important factor affecting the flying equipment, so people need to use wind tunnels to simulate the surrounding wind environment when the flying equipment is working.

[0003] Wind tunnels are the most commonly used and effective tools for artificially generating and controlling airflows and conducting aerodynamic and wind engineering tests. People use wind tunnels to conduct free flight tests, landing phase optimization, vertical take-off and landing transitions during flight, flight stability and other tests on flight equipment, and then design, test and optimize flight equipment.

[0004] However, currently common wind tunnel tests are mostly single-dimensional wind fields, which can only simulate the aerodynamic effects of a single wind field on flight equipment, and cannot simulate the complex wind field environment commonly seen in nature, and thus have certain limitations. Summary of the invention

[0005] In order to solve the problems in the above-mentioned background technology, the present invention provides a multi-physical field coupling environment simulation device. According to actual needs, the experimenter can simulate other wind field environments in nature through the cooperation of vertical flow fans, horizontal flow fans and rotary flow fans. By coordinating vertical flow fans, horizontal flow fans and rotary flow fans, the complex wind field environments commonly found in nature can be simulated, which has the effect of increasing the diversity of wind tunnel tests.

[0006] The present invention provides a multi-physics field coupling environment simulation device, comprising a base, a simulation cabin being fixedly connected to the upper surface of the base, a plurality of horizontal flow fans being arranged on one side wall of the simulation cabin, a plurality of rotating flow fans being installed on the upper surface of the base around the simulation cabin, and a plurality of vertical flow fans being arranged on the top of the simulation cabin.

[0007] Furthermore, the simulation cabin is fixedly connected to a support frame for supporting the horizontal flow fan, a first fixed frame is fixedly connected to one side of the support frame close to the interior of the simulation cabin, a plurality of first guide plates distributed along the vertical direction are rotatably connected inside the first fixed frame, a plurality of second fixed frames are fixedly connected to the upper surface of the base, and each second fixed frame is rotatably connected to a plurality of second guide plates distributed along the horizontal direction.

[0008] Furthermore, a fixed box connected to the vertical flow fan is fixedly connected to the top of the simulation cabin, a ventilation hole connected to the fixed box is provided on the top of the simulation cabin, a wind hood is fixedly connected inside the top of the simulation cabin, a slide groove is provided at the bottom of the wind hood, a movable plate is provided inside the wind hood, a connecting pipe connected to the movable plate and passing through the slide groove is connected to the bottom of the movable plate, and an air outlet pipe is fixedly connected to the bottom of the connecting pipe.

[0009] Furthermore, a mobile frame is provided in the simulation cabin, and a plurality of mobile fans are installed on the mobile frame.

[0010] Furthermore, the upper surface of the base is fixedly connected to a cabin body disposed outside the simulation cabin body.

[0011] Furthermore, the simulation cabin is equipped with a nozzle, a cooling module, a heating module, a lighting module and a snowfall module.

[0012] Furthermore, a turntable is provided on the base.

[0013] Furthermore, a telescopic plate for covering the slide groove is provided between the side wall of the movable plate and the inner wall of the wind shield.

[0014] Furthermore, a first driving component for adjusting the angle of the first guide plate is provided between the first fixing frame and the first guide plate.

[0015] Furthermore, a second driving assembly for adjusting the angle of the second guide plate is provided between the second fixing frame and the second guide plate.

[0016] Furthermore, a moving component for driving the moving plate to move is provided between the moving plate and the wind cover.

[0017] Furthermore, a pair of windshields are slidably inserted into a pair of side walls of the connecting pipe, and an opening and closing component is provided between each windshield and the side wall of the connecting pipe.

[0018] Furthermore, the first drive assembly includes a first motor fixedly connected to the side wall of the first fixed frame, the output shaft of the first motor is fixedly connected to the first synchronous pulley, the side wall of the first guide plate is fixedly connected to the first rotating rod rotatably connected to the first fixed frame, the first rotating rod is fixedly connected to the second synchronous pulley, and the first synchronous pulley and the second synchronous pulley are connected by a first synchronous belt.

[0019] Furthermore, the second drive assembly includes a second motor fixedly connected to the side wall of the second fixed frame, the output shaft of the second motor is fixedly connected to the third synchronous pulley, the side wall of the second guide plate is fixedly connected to the second rotating rod rotatably connected to the second fixed frame, the second rotating rod is fixedly connected to the fourth synchronous pulley, and the third synchronous pulley and the fourth synchronous pulley are connected by a second synchronous belt.

[0020] Furthermore, the moving component includes a pair of slide rails fixedly connected to the inner wall of the bottom of the wind hood, a slider corresponding to the slide rails is fixedly connected to the lower surface of the moving plate, a reserved groove is provided on the lower surface of the slider, a plurality of rotating wheels abutting the slide rails are provided in the reserved groove, a third motor corresponding to the rotating wheel is fixedly connected to the side wall of the slider, and the output shaft of the third motor is fixedly connected to the rotating wheel.

[0021] Furthermore, the opening and closing assembly includes a fourth motor fixedly connected to the side wall of the connecting pipe, the output shaft of the fourth motor is fixedly connected to a gear, the lower surface of the windshield is fixedly connected to a rack meshing with the gear, and the rack is slidably plugged into the connecting pipe.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) According to actual needs, test personnel can also simulate other wind field environments in nature by combining vertical flow fans, horizontal flow fans and rotary flow fans. By combining vertical flow fans, horizontal flow fans and rotary flow fans, it is possible to simulate the complex wind field environments commonly found in nature, which has the effect of increasing the diversity of wind tunnel tests.

[0024] (2) The combination of vertical flow fans and rotary flow fans can simulate tornadoes, which has the effect of further increasing the diversity of wind tunnel tests.

[0025] (3) By setting up a mobile frame to simulate intersection wind, the diversity of wind tunnel tests can be increased.

[0026] (4) Simulate different wind field environments according to actual needs. Select rain, snow, freezing rain, ice accumulation or different temperature environments according to actual conditions, and then use vertical flow fans, horizontal flow fans, rotary flow fans and mobile fans to simulate complex environments with three-dimensional multi-physical field coupling under different weather conditions, thereby increasing the diversity of wind tunnel tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of an embodiment of the present application;

[0029] Figure 2 This is a schematic diagram of a simulation cabin in this embodiment;

[0030] Figure 3 Schematic diagram of a horizontal flow fan in this embodiment;

[0031] Figure 4 is a schematic diagram of a first guide plate and a second guide plate in this embodiment;

[0032] Figure 5 is a schematic diagram showing the ventilation holes in this embodiment;

[0033] Figure 6 This is a schematic diagram showing the structure of the air duct in this embodiment;

[0034] Figure 7 This is a schematic diagram of a telescopic plate in this embodiment;

[0035] Figure 8 is a schematic diagram of a rotating wheel in this embodiment;

[0036] Fig. 9 This is a schematic diagram of a gear and a rack in this embodiment;

[0037] Fig.10 This is a schematic diagram of a mobile fan in this embodiment;

[0038] Fig.11 is a schematic diagram of a roller in this embodiment;

[0039] Fig.12 This is a schematic diagram of a first synchronous belt in this embodiment;

[0040] Fig.13 Schematic diagram of the second synchronous belt in this embodiment.

[0041] Description of reference numerals: 1. base; 11. cabin; 111. first cabin door; 12. second fixed frame; 121. second guide plate; 122. second drive assembly; 1221. second motor; 1222. third synchronous pulley; 1223. second rotating rod; 1224. fourth synchronous pulley; 1225. second synchronous belt; 13. mobile frame; 131. mobile fan; 132. roller; 14. turntable; 2. simulation cabin; 21. support frame; 211. first fixed frame; 2111. first guide plate; 2112. first drive assembly; 21121. first motor; 21122. first synchronous pulley; 21123. first rotating rod; 21124. second synchronous pulley; 21125. The first synchronous belt; 22. The grille plate; 23. The second hatch; 24. The wind hood; 241. The slide; 242. The moving plate; 2421. The telescopic plate; 243. The connecting pipe; 2431. The air outlet pipe; 2432. The wind shield; 2433. The opening and closing assembly; 24331. The fourth motor; 24332. The gear; 24333. The rack; 244. The moving assembly; 2441. The slide rail; 2442. The slider; 2443. The reserved groove; 2444. The rotating wheel; 2445. The third motor; 25. The nozzle; 26. The cooling module; 27. The heating module; 28. The lighting module; 29. ​​The snowfall module; 3. The horizontal flow fan; 4. The rotary flow fan; 5. The vertical flow fan; 51. The fixed box; 6. The ventilation hole. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0043] The following is combined with Figure 1 To Attachment Fig.13 The present invention is described in detail with reference to specific embodiments.

[0044] like Figures 1 to 5 As shown, a multi-physics field coupling environment simulation device provided by the present invention includes a base 1, a cabin 11 and a simulation cabin 2 are fixedly connected to the upper surface of the base 1, and the simulation cabin 2 is placed inside the cabin 11. The cabin 11 and the simulation cabin 2 are both unequal octagons in this embodiment, and can also be equilateral octagons, unequal hexagons, equilateral hexagons, rectangles, cubes or other shapes. One side of the cabin 11 is open, and a first cabin door 111 is provided on the side of the cabin 11 opening.

[0045] A pair of opposite side walls of the simulation cabin 2 are both opened, and one of the openings is provided with a support frame 21, which is fixedly connected to the simulation cabin 2, and a number of horizontal flow fans 3 are fixedly installed on the support frame 21 at equal intervals, and the horizontal flow fans 3 are bidirectional fans. There is space between the support frame 21 and the base 1, and a grille plate 22 is provided at the opening opposite to the horizontal flow fan 3, which is fixedly connected to the simulation cabin 2, and there is space between the grille plate 22 and the base 1, and there is space between the bottom of the other side walls of the simulation cabin 2 and the base 1.

[0046] One side of the simulation cabin 2 is also opened, and a second hatch 23 is provided at the opening of the simulation cabin 2, and a space is left between the second hatch 23 and the base 1.

[0047] A plurality of rotating flow fans 4 are installed on the base 1 . The rotating flow fans 4 are also bidirectional fans. The plurality of rotating flow fans 4 are arranged around the simulation cabin 2 . The rotating flow fans 4 can blow air to the bottom of the simulation cabin 2 .

[0048] A first fixing frame 211 is fixedly connected to one side of the support frame 21 close to the interior of the simulation cabin 2. A plurality of first guide plates 2111 are arranged inside the first fixing frame 211 in the vertical direction. Each first guide plate 2111 is rotatably connected to the first fixing frame 211. The first fixing frame 211 is connected to a first driving assembly 2112. The first driving assembly 2112 drives the first guide plates 2111 to rotate, thereby controlling the opening angle of the first guide plates 2111. In this embodiment, all the first guide plates 2111 are controlled by the first driving assembly 2112. It can also be configured to divide the first guide plates 2111 into multiple groups from top to bottom, each group corresponds to a first driving assembly 2112, and each group of first guide plates 2111 adjusts the opening angle of the first guide plates 2111 through the corresponding first driving assembly 2112.

[0049] Eight second fixing frames 12 are fixedly connected to the upper surface of the base 1, and the second fixing frames 12 are arranged corresponding to the rotary flow fans 4 on each side. A plurality of second guide plates 121 are arranged in each second fixing frame 12, and the second guide plates 121 are distributed in the horizontal direction.

[0050] Each second fixing frame 12 is connected to a second driving assembly 122, and the second driving assembly 122 drives the second guide plates 121 to rotate, thereby controlling the opening angle of the second guide plates 121. In this embodiment, all the second guide plates 121 on the same second fixing frame 12 are controlled by the corresponding second driving assembly 122, and the second guide plates 121 in the same second fixing frame 12 can also be divided into multiple groups in the horizontal direction, each group corresponds to a second driving assembly 122, and each group of second guide plates 121 adjusts the opening angle of the second guide plates 121 through the corresponding second driving assembly 122.

[0051] Four vertical flow fans 5 are fixedly connected to the top of the simulation cabin 2. A fixed box 51 is fixedly connected to the top of the simulation cabin 2. The four side walls of the fixed box 51 are fixedly connected to the vertical flow fans 5. The vertical flow fans 5 are also bidirectional fans. Ventilation holes 6 are arranged on the top of the simulation cabin 2, and the ventilation holes 6 are connected to the inside of the fixed box 51.

[0052] Simulation of horizontal uniform airflow: the first driving component 2112 drives the first guide plate 2111 to rotate to a horizontal open state, and the horizontal flow fans 3 work. Each horizontal flow fan 3 has the same rotation speed and blows a horizontal uniform airflow into the simulation cabin 2.

[0053] Downburst / downdraft simulation: formed by the cooperation of the vertical flow fan 5 and the rotary flow fan 4, the second drive component 122 drives the second guide plate 121 to rotate to a state parallel to the axis of the rotary flow fan 4, the vertical flow fan 5 blows air into the fixed box 51, the airflow passes through the ventilation hole 6 downward into the simulation cabin 2, and the rotary flow fan 4 blows air to the outside of the simulation cabin 2. Since the direction of the second guide plate 121 is parallel to the axis of the rotary flow fan 4, there is no rotating air volume at the bottom of the simulation cabin 2, which assists in forming a radial high-speed airflow on the ground to realize the simulation of downburst, control the air volume of the vertical flow fan 5 and the rotary flow fan 4, and then control the intensity of the downburst, weakening it to a certain extent to realize the simulation of downdraft.

[0054] Simulation of atmospheric boundary layer: The first driving component 2112 drives the first guide plate 2111 to rotate to a horizontal open state, and adjusts the rotation speed of the horizontal flow fan 3 at different heights. The horizontal flow fan 3 blows air into the simulation cabin 2 to form a wind speed field that is the same as the atmospheric boundary layer wind profile in the height direction, thereby realizing the simulation of the atmospheric boundary layer.

[0055] Horizontal wind shear simulation: the first driving component 2112 drives the first guide plate 2111 to rotate to a horizontal open state, and adjusts the rotation speed of the horizontal flow fan 3 in the horizontal direction, so that the rotation speed of the horizontal flow fan 3 in the horizontal direction is different, forming a linear change of wind speed in the horizontal direction, thereby realizing the simulation of horizontal wind shear.

[0056] Vertical wind shear simulation: The first driving component 2112 drives the first guide plate 2111 to rotate to a horizontal open state, and adjusts the rotation speed of the horizontal flow fan 3 in the vertical direction, so that the rotation speed of the horizontal flow fan 3 in the vertical direction is different, forming a linear change of wind speed in the vertical direction, thereby realizing the simulation of vertical wind shear.

[0057] Gust simulation: the first driving component 2112 drives the first guide plate 2111 to rotate to a horizontal open state, and quickly adjusts the air volume of the horizontal flow fan 3 to make the wind field in the simulation cabin 2 change rapidly over time, thereby realizing gust simulation.

[0058] According to actual needs, the test personnel can also simulate other wind field environments in nature by cooperating with the vertical flow fan 5, the horizontal flow fan 3 and the rotary flow fan 4. By cooperating with the vertical flow fan 5, the horizontal flow fan 3 and the rotary flow fan 4, the complex wind field environment commonly found in nature can be simulated, which has the effect of increasing the diversity of wind tunnel tests.

[0059] like Figures 2 to 11 As shown, a hood 24 is fixedly connected to the top of the simulation cabin 2, a chute 241 is provided at the bottom of the hood 24, a movable plate 242 is provided above the chute 241, and a pair of side walls of the movable plate 242 are slidably connected to the inner wall of the hood 24. A connecting pipe 243 connected to the upper surface of the movable plate 242 is integrally formed at the bottom of the movable plate 242, and the connecting pipe 243 is arranged through the chute 241. An air outlet pipe 2431 is fixedly connected to the bottom of the connecting pipe 243, and the air outlet pipe 2431 is in a bell-shaped shape. A moving assembly 244 is provided between the moving plate 242 and the hood 24, and the moving assembly 244 is used to drive the air outlet pipe 2431 to move along the length direction of the chute 241.

[0060] The other pair of side walls of the movable plate 242 are fixedly connected with a telescopic plate 2421, and the side of the telescopic plate 2421 away from the movable plate 242 is fixedly connected to the inner wall of the wind cover 24. In this embodiment, the telescopic plate 2421 is an accordion-type telescopic plate 2421. When the vertical flow fan 5 blows or extracts air into the fixed box 51, the telescopic plate 2421 blocks the slide slot 241, so that the airflow in the wind cover 24 can flow through the connecting pipe 243 and then through the air outlet pipe 2431 as much as possible.

[0061] Tornado simulation: formed by the cooperation of the vertical flow fan 5 and the rotary flow fan 4, the vertical flow fan 5 exhausts the fixed box 51, and the airflow inside the simulation cabin 2 is discharged through the outlet pipe 2431, forming an upward airflow inside the simulation cabin 2, and the second driving component 122 drives the second guide plate 121 to rotate to form a certain angle with the axis of the rotary flow fan 4, and the rotary flow fan 4 blows air to the inside of the simulation cabin 2 to form a rotating airflow at the bottom of the simulation cabin 2. The vertical flow fan 5 and the rotary flow fan 4 cooperate to realize the simulation of a tornado, and the moving component 244 drives the moving plate 242 to move, and then drives the outlet pipe 2431 to move, to realize the linear motion of the simulated tornado.

[0062] The cooperation of the vertical flow fan 5 and the rotary flow fan 4 can simulate a tornado, which has the effect of further increasing the diversity of wind tunnel tests.

[0063] A pair of side walls of the connecting pipe 243 are respectively slidably inserted with horizontally arranged wind shields 2432. When the two wind shields 2432 abut against each other, the wind shields 2432 close the connecting pipe 243. When the vertical flow fan 5 is not needed to work, the connecting pipe 243 is in a closed state, reducing the possibility of airflow being discharged through the outlet pipe 2431 when simulating other wind field environments.

[0064] An opening and closing component 2433 is provided between each wind shield 2432 and the connecting pipe 243. When the opening and closing component 2433 drives the two wind shields 2432 to move toward each other, the wind shield 2432 closes the connecting pipe 243. When the opening and closing component 2433 drives the two wind shields 2432 to move away from each other, the wind shield 2432 opens the connecting pipe 2433.

[0065] A moving frame 13 is provided on the inner wall of the simulation cabin 2 , a plurality of moving fans 131 are installed on the moving frame 13 , and a roller 132 is installed at the bottom of the moving frame 13 .

[0066] Crossroad wind simulation: the first drive assembly 2112 drives the first guide plate 2111 to rotate to a horizontal open state, and the horizontal flow fan 3 blows air into the simulation cabin 2. The position of the mobile frame 13 is moved so that the blowing direction of the mobile fan 131 is perpendicular to the blowing direction of the horizontal flow fan 3 to simulate the crossroad wind.

[0067] The mobile frame 13 is provided to simulate the crossroad wind, thereby increasing the diversity of the wind tunnel test.

[0068] A nozzle 25 is installed on the inner wall of the top of the simulation cabin 2. The nozzle 25 sprays water to simulate the rain environment according to the actual situation, and the rainfall intensity is simulated by the amount of water sprayed. A refrigeration module 26 and a heating module 27 are installed on the top of the simulation cabin 2. The refrigeration module 26 cools the inside of the simulation cabin 2 according to the actual situation to simulate the low temperature environment. The heating module 27 heats the simulation cabin 2 according to the actual situation to simulate the high temperature environment. In this embodiment, the refrigeration module 26 is a refrigeration compressor or other refrigeration equipment such as an air conditioner, and the heating module 27 is an electric heater or other heating equipment. The nozzle 25 cooperates with the horizontal flow fan 3 to simulate the blowing rain environment. The nozzle 25 cooperates with the refrigeration module 26 to simulate the freezing rain and ice accumulation environment when the temperature in the simulation cabin 2 is low. A lighting module 28 is also installed on the top of the simulation cabin 2. The lighting module 28 is used to simulate the intensity of sunlight. In this embodiment, the lighting module 28 is a lighting lamp. A snowfall module 29 is also installed on the top of the simulation cabin 2. The snowfall module 29 is used to simulate the snowing environment. In this embodiment, the snowfall module 29 is a snowmaker.

[0069] Different wind field environments are simulated according to actual needs. Rain, snow, sleet, ice accumulation or different temperature environments are selected according to actual conditions. The vertical flow fan 5, horizontal flow fan 3, rotary flow fan 4 and mobile fan 131 are then used to simulate complex environments of three-dimensional multi-physical field coupling under different weather conditions, thereby increasing the diversity of wind tunnel tests.

[0070] A turntable 14 is provided in the middle of the base 1. The turntable 14 is driven to rotate by a bottom driving motor (not shown in the figure). The turntable 14 is used to receive the test piece. The rotation angle of the turntable 14 is adjusted by the driving motor to carry out tests in accordance with different wind field environments, thereby increasing the diversity of wind tunnel tests.

[0071] like Fig.12 As shown, the first driving assembly 2112 includes a first motor 21121 fixedly connected to the side wall of the first fixed frame 211, and the output shaft of the first motor 21121 is fixedly connected to the first synchronous pulley 21122. Both sides of each first guide plate 2111 are fixedly connected to a first rotating rod 21123, and the first rotating rod 21123 is rotatably connected to the first fixed frame 211. The first rotating rod 21123 close to one side of the first motor 21121 is fixedly connected to a second synchronous pulley 21124, and the first synchronous pulley 21122 and the second synchronous pulley 21124 are connected through a first synchronous belt 21125.

[0072] The output shaft of the first motor 21121 drives the first synchronous pulley 21122 to rotate. The first synchronous pulley 21122 drives the second synchronous pulley 21124 to rotate through the first synchronous belt 21125. The second synchronous pulley 21124 further drives the first guide plate 2111 to rotate.

[0073] like Fig.13 As shown, the second driving assembly 122 includes a second motor 1221 fixedly connected to the side wall of the second fixing frame 12, and the output shaft of the second motor 1221 is fixedly connected to the third synchronous pulley 1222. Both sides of each second guide plate 121 are fixedly connected to a second rotating rod 1223, and the second rotating rod 1223 is rotatably connected to the second fixing frame 12. The second rotating rod 1223 close to the side of the second motor 1221 is fixedly connected to a fourth synchronous pulley 1224, and the third synchronous pulley 1222 and the fourth synchronous pulley 1224 are connected by a second synchronous belt 1225.

[0074] The output shaft of the second motor 1221 drives the third synchronous pulley 1222 to rotate. The third synchronous pulley 1222 drives the fourth synchronous pulley 1224 to rotate through the second synchronous belt 1225. The fourth synchronous pulley 1224 drives the second guide plate 121 to rotate through the second rotating rod 1223.

[0075] like Figure 8As shown, the moving assembly 244 includes a pair of slide rails 2441 fixedly connected to the inner wall of the bottom of the wind shield 24, and a pair of sliders 2442 are fixedly connected to the lower surface of the moving plate 242, and the sliders 2442 are arranged in a one-to-one correspondence with the slide rails 2441. The lower surface of each slider 2442 is provided with a reserved groove 2443 upward, and a rotating wheel 2444 rollingly connected to the slide rail 2441 is provided at a position away from each other in the reserved groove 2443, and the number of rotating wheels 2444 in each reserved groove 2443 is two. The side wall of each slider 2442 is fixedly connected to two third motors 2445, and the third motors 2445 are arranged in a one-to-one correspondence with the rotating wheels 2444, and the output shaft of the third motor 2445 is fixedly connected to the rotating wheels 2444. The output shaft of the third motor 2445 drives the rotating wheels 2444 to rotate, and the rotating wheels 2444 then drive the moving plate 242 to move.

[0076] like Fig. 9 As shown, the opening and closing assembly 2433 includes a fourth motor 24331 fixedly connected to the side wall of the connecting tube 243, and the output shaft of the fourth motor 24331 is fixedly connected to the gear 24332. A rack 24333 is fixedly connected to the lower surface of the windshield 2432, the rack 24333 is meshed and connected with the gear 24332, and the rack 24333 is slidably plugged with the connecting tube 243. The output shaft of the fourth motor 24331 drives the gear 24332 to rotate, the rotation of the gear 24332 drives the rack 24333 to move, and the movement of the rack 24333 drives the windshield 2432 to move.

[0077] The implementation principle of a multi-physics field coupling environment simulation device provided by the present invention is:

[0078] Simulation of horizontal uniform airflow: the first guide plate 2111 is in a horizontally open state, the horizontal flow fans 3 are working, and each horizontal flow fan 3 has the same rotation speed, blowing a horizontal uniform airflow into the simulation cabin 2.

[0079] Downburst / sinking air flow simulation: formed by the cooperation of the vertical flow fan 5 and the rotary flow fan 4, the second guide plate 121 is in a state parallel to the axis of the rotary flow fan 4, the vertical flow fan 5 blows air into the fixed box 51, and the airflow passes through the ventilation hole 6 downward into the simulation cabin 2, and the rotary flow fan 4 blows air to the outside of the simulation cabin 2 to assist in forming a radial high-speed airflow on the ground to achieve the simulation of downburst wind, and the air volume of the vertical flow fan 5 and the rotary flow fan 4 is controlled to control the intensity of the downburst wind, and weaken it to a certain extent to achieve the simulation of sinking air flow;

[0080] Simulation of atmospheric boundary layer: the first guide plate 2111 is in a horizontally open state, and the rotation speed of the horizontal flow fan 3 at different heights is adjusted. The horizontal flow fan 3 blows air into the simulation cabin 2, forming a wind speed field that is the same as the atmospheric boundary layer wind profile in the height direction, thereby realizing the simulation of the atmospheric boundary layer.

[0081] Horizontal wind shear simulation: the first guide plate 2111 is in a horizontally open state, and the rotation speed of the horizontal flow fan 3 in the horizontal direction is adjusted to make the rotation speed of the horizontal flow fan 3 in the horizontal direction different, forming a linear change of wind speed in the horizontal direction, thereby realizing the simulation of horizontal wind shear.

[0082] Vertical wind shear simulation: the first guide plate 2111 is in a horizontally open state, and the rotation speed of the horizontal flow fan 3 in the vertical direction is adjusted to make the rotation speed of the horizontal flow fan 3 in the vertical direction different, forming a linear change of wind speed in the vertical direction, thereby realizing the simulation of vertical wind shear.

[0083] Gust simulation: the first guide plate 2111 is in a horizontally opened state, and the air volume of the horizontal flow fan 3 is quickly adjusted to make the wind field in the simulation cabin 2 change rapidly over time, thereby realizing gust simulation.

[0084] Tornado simulation: formed by the cooperation of the vertical flow fan 5 and the rotary flow fan 4, the vertical flow fan 5 exhausts air from the fixed box 51, and the airflow inside the simulation cabin 2 is discharged through the outlet pipe 2431, forming an upward airflow inside the simulation cabin 2, and the second guide plate 121 forms a certain angle with the axis of the rotary flow fan 4, and the rotary flow fan 4 blows air into the simulation cabin 2. The vertical flow fan 5 and the rotary flow fan 4 cooperate to realize the simulation of a tornado, and the movable plate 242 moves, thereby driving the outlet pipe 2431 to move, thereby realizing the linear motion of the simulated tornado.

[0085] Crossroad wind simulation: the first guide plate 2111 is in a horizontally open state, the horizontal flow fan 3 blows air into the simulation cabin 2, and the position of the mobile frame 13 is moved so that the blowing direction of the mobile fan 131 is perpendicular to the blowing direction of the horizontal flow fan 3 to simulate the crossroad wind.

[0086] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A multi-physics field coupling environment simulation device, characterized in that: The invention comprises a base (1), the upper surface of the base (1) being fixedly connected to a simulation cabin (2), one side wall of the simulation cabin (2) being provided with a plurality of horizontal flow fans (3), the upper surface of the base (1) being provided with a plurality of rotating flow fans (4) arranged around the simulation cabin (2), and the top of the simulation cabin (2) being provided with a plurality of vertical flow fans (5); The simulation cabin (2) is fixedly connected to a support frame (21) for supporting the horizontal flow fan (3); a first fixing frame (211) is fixedly connected to a side of the support frame (21) close to the interior of the simulation cabin (2); a plurality of first guide plates (2111) distributed in a vertical direction are rotatably connected to the first fixing frame (211); a plurality of second fixing frames (12) are fixedly connected to the upper surface of the base (1); each second fixing frame (12) is rotatably connected to a plurality of second guide plates (121) distributed in a horizontal direction; A fixed box (51) in communication with the vertical flow fan (5) is fixedly connected to the top of the simulation cabin (2); a ventilation hole (6) in communication with the fixed box (51) is provided on the top of the simulation cabin (2); a wind shield (24) is fixedly connected to the top of the simulation cabin (2); a slide groove (241) is provided at the bottom of the wind shield (24); a movable plate (242) is provided inside the wind shield (24); a connecting pipe (243) in communication with the movable plate (242) and passing through the slide groove (241) is connected to the bottom of the movable plate (242); an air outlet pipe (2431) is fixedly connected to the bottom of the connecting pipe (243); A first driving assembly (2112) for adjusting the angle of the first guide plate (2111) is provided between the first fixing frame (211) and the first guide plate (2111); A second driving assembly (122) for adjusting the angle of the second guide plate (121) is provided between the second fixing frame (12) and the second guide plate (121); A moving assembly (244) for driving the moving plate (242) to move is provided between the moving plate (242) and the wind shield (24); A pair of windshield plates (2432) are slidably inserted into a pair of side walls of the connecting pipe (243), and an opening and closing component (2433) is provided between each windshield plate (2432) and the side wall of the connecting pipe (243).

2. A multi-physics field coupling environment simulation device according to claim 1, characterized in that: A movable frame (13) is provided in the simulation cabin (2), and a plurality of movable fans (131) are installed on the movable frame (13).

3. A multi-physics field coupling environment simulation device according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a cabin body (11) disposed outside the simulation cabin (2).

4. A multi-physics field coupling environment simulation device according to any one of claims 1 to 2, characterized in that: The simulation cabin (2) is equipped with a nozzle (25), a refrigeration module (26), a heating module (27), a lighting module (28) and a snowfall module (29).

5. The multi-physics field coupling environment simulation device according to claim 2, characterized in that: A turntable (14) is provided on the base (1).

6. The multi-physics field coupling environment simulation device according to claim 1, characterized in that: A telescopic plate (2421) for covering the slide groove (241) is provided between the side wall of the movable plate (242) and the inner wall of the wind shield (24).

7. The multi-physics field coupling environment simulation device according to claim 1, characterized in that: The first driving assembly (2112) comprises a first motor (21121) fixedly connected to a side wall of a first fixed frame (211); an output shaft of the first motor (21121) is fixedly connected to a first synchronous pulley (21122); a first rotating rod (21123) rotatably connected to the first fixed frame (211) is fixedly connected to the side wall of the first guide plate (2111); the first rotating rod (21123) is fixedly connected to a second synchronous pulley (21124); and the first synchronous pulley (21122) and the second synchronous pulley (21124) are connected via a first synchronous belt (21125).

8. The multi-physics field coupling environment simulation device according to claim 1, characterized in that: The second driving assembly (122) comprises a second motor (1221) fixedly connected to a side wall of the second fixed frame (12); the output shaft of the second motor (1221) is fixedly connected to a third synchronous pulley (1222); the side wall of the second guide plate (121) is fixedly connected to a second rotating rod (1223) rotatably connected to the second fixed frame (12); the second rotating rod (1223) is fixedly connected to a fourth synchronous pulley (1224); and the third synchronous pulley (1222) and the fourth synchronous pulley (1224) are connected via a second synchronous belt (1225).

9. The multi-physics field coupling environment simulation device according to claim 1, characterized in that: The moving assembly (244) comprises a pair of slide rails (2441) fixedly connected to the inner wall of the bottom of the wind shield (24); a slider (2442) corresponding to the slide rails (2441) is fixedly connected to the lower surface of the moving plate (242); a reserved groove (2443) is provided on the lower surface of the slider (2442); a plurality of rotating wheels (2444) abutting against the slide rails (2441) are provided in the reserved groove (2443); a third motor (2445) corresponding to the rotating wheels (2444) is fixedly connected to the side wall of the slider (2442); and an output shaft of the third motor (2445) is fixedly connected to the rotating wheels (2444).

10. The multi-physics field coupling environment simulation device according to claim 1, characterized in that: The opening and closing assembly (2433) comprises a fourth motor (24331) fixedly connected to the side wall of the connecting tube (243); the output shaft of the fourth motor (24331) is fixedly connected to a gear (24332); the lower surface of the wind shield (2432) is fixedly connected to a rack (24333) meshingly connected to the gear (24332); and the rack (24333) is slidably plugged into the connecting tube (243).

Images