CN108844706A - A kind of array multi-function windtunnel drive system - Google Patents
A kind of array multi-function windtunnel drive system Download PDFInfo
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- CN108844706A CN108844706A CN201810951629.2A CN201810951629A CN108844706A CN 108844706 A CN108844706 A CN 108844706A CN 201810951629 A CN201810951629 A CN 201810951629A CN 108844706 A CN108844706 A CN 108844706A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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Abstract
The present invention proposes a kind of array multi-function windtunnel drive system, including control system, four part of drive system, auxiliary system and hole body, air accumulator and jet pipe are arranged by way of array, pass through the air-flow of part air accumulator task driven wind-tunnel in wind-tunnel use process, air accumulator do not work or the end that worked is inflated with low-powered air compressor simultaneously, until meeting pressure requirements in air accumulator.This system can extend the effective time of measuring of single of intermittent wind tunnel, provide more data, while reducing use cost.Heating and cooling system pipeline is mounted on around gas tank in this wind-tunnel, its pipeline is mounted on around spray head, same heating cooling controller is used in the spray head of the same horizontal position, to maintain or change experimental wind flow temperature, array arrangement of the present invention, which can meet in experimentation, changes simultaneously different location flow velocity and jet temperature, the characteristics of motion and the physics temperature difference of same object during the motion are simulated, more true data sample is formed.
Description
Technical field
The present invention relates to aerodynamic scope, in particular to a kind of array multi-function windtunnel drive system.
Background technique
Wind-tunnel is aerodynamic research tool, be can artificially generated and control air-flow, and air-flow can be measured to object
Effect and observe physical phenomenon a kind of pipe-like experimental facilities, the flowing to simulated flight device or object ambient gas
Equipment, be mainly made of hole body, drive system and Measurement and Control System, be carry out aerodynamic experiment it is the most frequently used, most have
The tool of effect.
Because the controlling of wind-tunnel is good, repeatability is high, and air-flow is (i.e. empty to the simulated conditions of object during wind tunnel experiment
Aerodynamics characteristic) it is most similar with reality, therefore wind tunnel experiment obtains extensively in industries such as aerospace, automobile manufacture, civil engineerings
General utilization, for example load due to wind pressure of works and vibration, constructure ventilation, air pollution, wind-power electricity generation, surroundings wind field, complexity
The effect of stream condition in landform, protection from the wind etc..These problems all can use the principle of geometric similarity, by landform, atural object with
Scaled model is placed in wind-tunnel, then with measurement model by wind-force or wind speed.Wind Tunnel Data is also used to test
Numerical model is demonstrate,proved, preferable mode parameter is found.
The wind-tunnel drive system that existing wind tunnel experiment uses shares two classes, and one kind is driven by controllable electric unit and by it
Fan or Axial Flow Compressor composition, such drive system power consumption is big, and efficiency is lower.Another kind of is first with low power compressor
Supercharging air is stored in gas tank, or the vacuum tank being connected with wind-tunnel outlet conduit is vacuumized with vacuum pump, when experiment
Quick open valve door makes pressure-air enter hole body directly or by injector or draw air into hole body by vacuum tank, thus
There are the various forms of intermittent wind tunnels of air blowing, injection, air-breathing and their intercombinations.The general Reynolds number of intermittent wind tunnel compared with
Height, its working time can by several seconds to tens seconds, be chiefly used in transonic speed, supersonic and hypersonic wind-tunnel, but temporarily rush formula
The wind-tunnel working time is short, can only provide the air-flow of a flow velocity simultaneously, to the more demanding of Measurement and Control System, to increase
Construction and use cost, and intermittent wind tunnel is needed to the continuous start and stop of large-scale compressor, the waste of start and stop energy consumption is larger.
For existing wind-tunnel to the simulation of automobile industry mainly in terms of windage, synchronization relates only to the gas of same flow velocity
Stream, is not directed to test to temperature to the simulation in vehicle traveling process or using other way, operating process is cumbersome, funds
It expends larger.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of array multi-function windtunnel drive system.The present invention passes through
The form of array arranges air accumulator, drives wind-tunnel by the part air accumulator work (exhaust) in array in wind-tunnel use process
Air-flow, while idle or the end that worked air accumulator is inflated with low power air compressor, until meeting storage
Pressure requirements in gas tank.The present invention can it is larger extend intermittent wind tunnel the effective time of measuring of single, more data are provided；It is logical
The jet location and speed for crossing the array exhaust outlet of change drive system change airflow direction and are different location in synchronization
Air-flow different in flow rate is provided, influence of the simulation actual airflow more refined to product motions；By changing different positions in array
The physics temperature difference of the same object of jet orifice temperature simulation set during the motion forms more true data sample；It drops simultaneously
Low construction cost and use cost.This system can meet the needs of different measurement environment.
A kind of array multi-function windtunnel drive system of the present invention includes control system, drive system, auxiliary system and hole
Four part of body.The control system includes control host, human-computer interaction interface, control executive component.The drive system
Air accumulator and vacuum tank, size air compressor, vacuum pump, fluidic plate, sensor, Laval nozzle including array.Auxiliary
System includes heating and cooling system, lubricating system.
The specific mounting means for the multi-function windtunnel drive system that a kind of more gas tanks of the present invention work alternatively is：Wind-tunnel driving
The gas tank of system is placed on gas tank frame in the way of array, and gas tank frame determines that the array of gas tank places mode, and gas tank goes out
Mouth is connected on Laval nozzle by reversal valve, variable voltage control circuit and shunting circuit, gas flow jet exit Laval nozzle
It is mounted in fluidic plate according to array manner, fluidic plate includes power stream plate and auxiliary fluidic plate, the outlet of Laval nozzle
It is parallel with the fluidic plate that it is installed；Power stream plate is parallel with hole body air inlet section, and auxiliary fluidic plate and power stream plate are according to certain angle
Degree installation.The outlet of size air compressor is connected after check valve with reversal valve, to inflate to gas tank；Air compressor
Exit is equipped with safety valve.In above-mentioned variable voltage control circuit according to actual demand carry out pressure regulator valve, speed governing valve, reversal valve and
The arrangement of safety valve.Safety valve is used to prevent hypertonia from destroying system in the present system.Wherein the main driving of drive system with
Vacuum system is separately mounted to the two sides of hole body, and vacuum tank is mounted on the other side of hole body, and and vacuum in the way of array
Series connection of pumps vacuumizes vacuum tank with vacuum pump.Vacuum tank plays air in stable hole body in the drive system of this wind-tunnel
Flow velocity, auxiliary change the effect of jet stream flow direction, so as to or take preferably experimental data.Heating and cooling system pipeline is pressed in this wind-tunnel
It is mounted on around gas tank according to actual demand, to maintain the temperature of gas tank, prevents danger；Its pipeline is wanted by design simultaneously
It asks and is mounted on around spray head, same heating cooling controller is used in the spray head of the same horizontal position, to maintain or change experiment
Gas flow temperature.Pressure sensor is installed at gas tank outlet, to measure gas tank pressure, is guaranteed safety and is sent to control system
Analog signal.Velocity sensor be separately mounted at jet exit and hole body in, to measure air-flow velocity, and connect with control system
It is logical to form close loop control circuit.
Control host described in a kind of array multi-function windtunnel drive system of the present invention is a microsystem, is acted on
The analog signal that all controlled elements of this system, receiving sensor and human-computer interaction interface issue handles information and according to pre-
If program issues physics signal stream, closed circuit is formed with other subsystems.
Human-computer interaction interface described in a kind of array multi-function windtunnel drive system of the present invention is one or more controls
Panel is used for manual operation.
Control executive component described in a kind of array multi-function windtunnel drive system of the present invention includes all kinds of multidigit multi-pass
Pressure regulator valve, speed governing valve, throttle valve and safety valve etc..
Air accumulator described in a kind of array multi-function windtunnel drive system of the present invention, which refers to, all kinds of meets setting for national standard
Pressure is counted not less than 15MPa not higher than 45MPa (wirking pressure can preferably reach experiment effect in this pressure limit)
Air accumulator, gas storage volume be designed as single air accumulator be 1.5 cubic metres (gas storage volume according to actual design needs depending on, but
Volume of air in atmospheric pressure needed for meeting single measurement), but this is not restrictive condition of the invention, it is any with the present invention
The wind-tunnel drive system that designs and produces of core concept all within protection scope of the present invention.According to design requirement, air accumulator
Muzzle velocity can be adjusted according to the control executive component of control system, also can reach subsonic speed requirement.Air accumulator is penetrated perpendicular to master
Flowing plate is arranged by array manner.
Vacuum tank described in a kind of array multi-function windtunnel drive system of the present invention refers to according to the true of national standard design
Reciprocal of duty cycle is not less than the vacuum tank of 0.2MPa (accepted value), and design volume is 6.28 cubic metres (given according to installation requirements), but
This is not limitation restrictive condition of the invention, and any wind-tunnel drive system designed and produced with core concept of the present invention is all in this hair
Within bright protection scope.Vacuum tank is also arranged according to array manner.Vacuum tank main function is injection, additional high pressure gas tank work
Make.In the present system the vacuum systems elements such as vacuum tank can also be removed according to physical condition.
Size air compressor described in a kind of array multi-function windtunnel drive system of the present invention refers to that more meet national standard
The air compressor of two kinds of discharge capacities of size of design requirement, wherein the outlet pressure of compressor should holding safety factor be 2-3
(air compressor inflates common safety coefficient to gas tank, to guarantee gas tank safety, prevents from exploding), i.e. the design pressure of air accumulator
Power should be 2-3 times of air compressor.For the design requirement for meeting high efficiency and save the cost, the air compressor of small displacement
The air compressor quantity of quantity larger displacement is more, and the rated power of the air compressor of small displacement is less than the air pressure of huge discharge
Contracting machine, or the air compressor of huge discharge can not be used on demand.
Vacuum pump described in a kind of array multi-function windtunnel drive system of the present invention refers to that pumping speed is true not less than 120L/s
Sky pump (chooses vacuum pump according to standard, the pumping speed of vacuum pump should be greater than the summation of jet flow).
Fluidic plate described in a kind of array multi-function windtunnel drive system of the present invention is by metal material or high intensity
The plate of high molecular material production, is divided into power stream plate and auxiliary fluidic plate.The mounting hole of installation jet pipe, peace are provided in fluidic plate
It arranges in fluidic plate according to array manner in dress hole.
Sensor described in a kind of array multi-function windtunnel drive system of the present invention refer to the pressure for being mounted on air accumulator and
Temperature sensor, the velocity sensor for being mounted on outside nozzle and temperature sensor etc..
Heating and cooling system described in a kind of array multi-function windtunnel drive system of the present invention refer to liquid nitrogen cooling system and
Electromagnetic heating system, keeping or change the temperature of air accumulator and jet stream, meeting requirement and guaranteeing equipment safety.Heating
Cooling system can maintain air accumulator temperature, prevent in air accumulator gas because temperature is excessively high and strenuous exercise；Furthermore it heats cold
But the pipeline of system is installed on around spray head, and the same horizontal position uses same temperature controller, i.e. same level
The temperature of position jet stream is controlled as identical, simulates the change of actual air layer temperature by changing the temperature on vertical direction
Change, can accomplish the difference of synchronization jet temperature in this way, it is more close with truthful data.
The steel that hole body described in a kind of array multi-function windtunnel drive system of the present invention is provided with water conservancy diversion gap for two sides is long
Cube shell.Water conservancy diversion gap can claim flow deflector again, be mounted in playing tissue air-flow, air-flow being avoided to generate heavy turbulence for wind-tunnel two sides
Phenomenon and cause to wind-tunnel generate greater impact critical component.
A kind of specific working mode of array multi-function windtunnel drive system of the present invention is：The present invention can pass through the portion of opening
Divide the outlet of gas tank to provide gas source for system, pressure is detected by sensor and exit velocity changes the openings of sizes of valve to maintain
Steady air current is controlled by control system according to pre-set code.When the outlet pressure of single gas tank is reduced to preset value, open
Logical others pressure gas tank continues as system and provides gas source, to meet lasting gas source supply, extends the single of intermittent wind tunnel
The jet stream time.The air flow direction for opening the gas tank terminated after afterflow pressure gas tank by control reversal valve change work, is connected empty
Air compressor inflates gas tank, can the lesser mini air compressor pair of startup power when the frequency of use of wind-tunnel is smaller
Gas tank is inflated, in the case where meeting requirement can continual running low-powered air compressor, avoid frequently
Energy consumption caused by start and stop air compressor.When wind-tunnel frequency of use is higher, powerful large-scale air compression can be started simultaneously
Machine is inflated gas tank, saves inflationtime.Working method as this system effectively can avoid air compressor from inflating
When influence to air flow rate at jet pipe and pressure, avoid fluctuating.
The working method of vacuum pump is when wind-tunnel before use, the prefabricated air by vacuum tank of vacuum pump is taken away, by vacuum
The pressure of tank is down to design pressure (vacuum degree 0.2MPa), can start to carry out wind tunnel experiment, experimentation intermediate pump is held
Reforwarding is made.Vacuum system is the auxiliary system in this wind-tunnel drive system, can be added in actual measurement, can also be removed true
Empty set system.It is described in the present invention, is only more fully to state.
Jet flow by changing different location Laval nozzle can form different in flow rate in same jet stream plane
The air-flow of different flow directions in air-flow or entire measurement space.The opening for only opening power stream plate range inner nozzle, can be formed with
The air-flow of test articles front convection current changes air-flow velocity, that is, analog such as two vehicles of power stream plate different location jet orifice simultaneously
Capable air-flow when driving is to the influence in vehicle traveling process；When needing to simulate has lateral wind to act on caused by product
The jet exit of auxiliary fluidic plate is opened, to reach default effect.Air-flow during needing to simulate such as zig zag is to automobile
When the influence of traveling, the principle that this system can also be used is obtained.When needing to simulate in severe temperature environment air-flow to garage
When the influence sailed, can indirectly it be obtained by changing temperature change gas flow temperature of the heating and cooling system at different jet mouth
Measurement data.Above several situations described in this system can be used in combination, and to form the air-flow for meeting requirement of experiment, improve experiment
The precision of data.
A kind of array multi-function windtunnel drive system of the present invention is compared to the wind-tunnel for forming air-flow by fan or temporarily punching
Formula wind-tunnel can provide air-flow different in flow rate in synchronization different location.The present invention is compared to existing intermittent wind tunnel, in list
When a certain data of secondary measurement, effective air-flow can be extended by the time, more effective measurement data are provided, make measurement data more
Accurately.The present invention can be in synchronization by the temperature on heating and cooling system change vertical direction, to simulate true air
The slight change of layer temperature.When flow needed for single measurement is not required to open all gas tanks, the progress of part gas tank can be only used
Single experiment measurement avoids the energy dissipation for repeatedly opening large-scale air accumulator, effectively save energy consumption.And a kind of array of the present invention
Formula multi-function windtunnel drive system can inflate the air accumulator that work is completed in measurement process, reach measurement and inflationtime
It is overlapping, the time is saved, measurement efficiency is improved；Meanwhile when can avoid air compressor to air accumulator inflation using this working method
The fluctuation of jet orifice air flow rate and pressure.The present invention can during idle time inflate gas tank, and it is large-scale empty to save multiple start and stop
The energy consumption of air compressor, while the depreciation time of air compressor is also extended, save cost.
Detailed description of the invention
Fig. 1 is a kind of general illustration of array multi-function windtunnel drive system of the present invention.
Fig. 2 is a kind of drive system top view of array multi-function windtunnel drive system of the present invention.
Fig. 3 is a kind of oblique shaft side figure of drive system of array multi-function windtunnel drive system of the present invention.
Fig. 4 is a kind of gas tank scheme of installation of array multi-function windtunnel drive system of the present invention.
Fig. 5 is a kind of power stream plate schematic diagram of array multi-function windtunnel drive system of the present invention.
In figure：1- heating and cooling system；2- gas tank bracket；3- gas tank；4- pipeline integral box；5- power stream plate；The hole 6- body；
7- vacuum system；8- control system；The auxiliary fluidic plate of 9-；The small air compressor of 10-；The big air compressor of 11-；12- pressure sensing
Device；13- reversal valve；14- Laval nozzle；15- safety valve.
Specific embodiment
As shown in Figure 1, a kind of array multi-function windtunnel drive system of the present invention include control system 8, it is drive system, auxiliary
6 four part of auxiliary system and hole body.Wherein drive system is as shown in Figures 2 and 3, for providing air-flow and each for entire wind tunnel system
Item test power, is core of the invention.Wherein the main driving of drive system and vacuum system 7 are separately mounted to the two of hole body 6
Side, the vacuum tank in vacuum system 7 are mounted on the other side of hole body 6 in the way of array, and with the vacuum in vacuum system 7
Series connection of pumps vacuumizes vacuum tank with vacuum pump.Vacuum tank plays air in stable hole body 6 in the drive system of this wind-tunnel
Flow velocity, auxiliary changes the effect of jet stream flow direction, to obtain preferably experimental data.Control system 8 is in wind tunnel system
Data processing and order control.Auxiliary system be used for auxiliary system normal operation, reduce operational process in due to environment etc. because
Element causes the probability of failure to system.The heating and cooling system 1 that auxiliary system includes in this wind-tunnel can maintain air accumulator temperature,
Prevent in air accumulator 3 gas because temperature is excessively high and strenuous exercise causes danger；Furthermore the pipeline of heating and cooling system 1 is installed
Around jet pipe 14, and the same horizontal position uses same temperature controller, the i.e. temperature of the same horizontal position jet stream
It is controlled as identical, simulates the variation of actual air layer temperature by changing the temperature on vertical direction, can do in this way
It is more close with truthful data to the difference of synchronization jet temperature.It is empty to provide experiment for disposing test article for hole body 6
Between environment.
A kind of specific mounting means of array multi-function windtunnel drive system of the present invention is as shown in figure 4, wind-tunnel driving system
The gas tank 3 of system is placed on gas tank frame 2 in the way of array, and gas tank frame 2 determines that the array of gas tank 3 places mode, gas tank 3
Outlet is connected on Laval nozzle 14 by pressure sensor 12, reversal valve 13, variable voltage control circuit 4 and shunting circuit, air-flow
Laval nozzle 14 is mounted in fluidic plate according to array manner at jet exit, as shown in figure 5, fluidic plate includes power stream plate
5 and auxiliary fluidic plate 9, the outlet of Laval nozzle 14 it is parallel with the jet stream plate face that it is installed；Power stream plate 5 and hole body 6 into
Gas section is parallel, and auxiliary fluidic plate 9 is installed with power stream plate 5 according to certain angle, to assist forming the air-flow of test needs.Size
The outlet of air compressor is connected after check valve with reversal valve 13, to inflate to gas tank；Air compressor exit peace
Equipped with safety valve 15.Pressure regulator valve, speed governing valve, reversal valve and safety are carried out according to actual demand in above-mentioned variable voltage control circuit 4
The arrangement of valve.Safety valve 15 is in the present system for preventing hypertonia from destroying system.Pressure sensor 12 is installed on gas tank 3 and goes out
At mouthful, to measure 3 internal air pressure of gas tank, guarantees safety and send analog signal to control system 8.Velocity sensor point
It is not mounted at jet exit and hole body 6, to measure air-flow velocity, and forms close loop control circuit with the connection of control system 8.
As shown in figure 5, be the jet orifice array arrangement mode of one of fluidic plate of the invention, it can also be according to measurement essence
Degree, stream range etc. need to change arrangement mode of the jet orifice in fluidic plate.
A kind of specific working mode of array multi-function windtunnel drive system of the present invention is：This system can pass through the portion of opening
Divide the outlet of gas tank 3 to provide gas source, pressure is detected by sensor and exit velocity changes the openings of sizes of valve to maintain air-flow
Stablize, is controlled by control system 8 according to pre-set code.It is open-minded when the outlet pressure of single gas tank 3 is reduced to setting value
Other pressure gas tanks 3 continue to provide gas source, to meet lasting gas source supply, when extending the single jet stream of intermittent wind tunnel
Between.The air flow direction for opening the gas tank 3 terminated after afterflow pressure gas tank by the control change work of reversal valve 13, connects air pressure
Contracting machine inflates gas tank, can startup power 10 pairs of gas of lesser mini air compressor when the frequency of use of wind-tunnel is smaller
Tank is inflated, in the case where meeting requirement can continual running low-powered air compressor 10, avoid frequently
Energy consumption caused by start and stop air compressor.When wind-tunnel frequency of use is higher, powerful large-scale air compression can be started simultaneously
Machine 11 is inflated gas tank, saves inflationtime.Working method as this system effectively can avoid air compressor from filling
To the influence of air flow rate and pressure at jet pipe 14 when gas, avoid fluctuating.
The working method of vacuum pump is when wind-tunnel before use, the prefabricated air by vacuum tank of vacuum pump is taken away, by vacuum
The pressure of tank is down to design pressure (vacuum degree 0.2MPa), can start to carry out wind tunnel experiment, experimentation intermediate pump is held
Reforwarding is made.Vacuum system 7 is the auxiliary system in this wind-tunnel drive system, can add, can also remove in actual measurement
Vacuum system.It is described in the present invention, is only more fully to state.
Jet flow by changing different location Laval nozzle 14 can form different in flow rate in same jet stream plane
Air-flow or entire measurement space in different flow directions air-flows.The opening for only opening 5 range inner nozzle 14 of power stream plate, can shape
At the air-flow with the convection current of test articles front, change air-flow velocity, that is, analog of 5 different location jet orifice of power stream plate for example
Air-flow is to the influence in vehicle traveling process when two vehicle parallel runnings；There is lateral wind effect caused by product when needing to simulate
When, the jet exit of auxiliary fluidic plate 9 can be opened, to reach default effect.Gas during needing to simulate such as zig zag
When flowing the influence to running car, the principle that this system can also be used is obtained.When needing to simulate air-flow in severe temperature environment
When influence to running car, can by change temperature of the heating and cooling system 1 at different jet mouth change gas flow temperature come
Indirectly obtain measurement data.Above several situations described in this system can be used in combination, to form the gas for meeting requirement of experiment
Stream, improves the precision of experimental data.
Claims (9)
1. a kind of array multi-function windtunnel drive system, it is characterised in that：Including control system, drive system, auxiliary system
With four part of hole body, the control system includes control host, human-computer interaction interface, control executive component, the driving
System includes the air accumulator and vacuum tank, size air compressor, vacuum pump, fluidic plate, sensor, Laval nozzle of array,
Auxiliary system includes heating and cooling system, lubricating system, and the gas tank of wind-tunnel drive system is placed in gas tank in the way of array
On frame, gas tank outlet is connected on Laval nozzle by reversal valve, variable voltage control circuit and shunting circuit, gas flow jet exit
Laval nozzle is mounted in fluidic plate according to array manner, and fluidic plate includes power stream plate and auxiliary fluidic plate, Laval nozzle
Outlet it is parallel with the fluidic plate that it is installed；Power stream plate is parallel with hole body air inlet section, auxiliary fluidic plate and power stream plate
It is installed according to certain angle；The outlet of size air compressor is connected after check valve with reversal valve, to inflate to gas tank；
Air compressor exit is equipped with safety valve；The main driving of drive system and vacuum system are separately mounted to the two sides of hole body,
Vacuum tank is mounted on the other side of hole body in the way of array, and with vacuum series connection of pumps, vacuum tank is taken out with vacuum pump
Vacuum；Heating and cooling system pipeline is mounted on around gas tank according to actual demand, and pipeline is mounted on around spray head, same
The spray head of horizontal position uses same heating cooling controller, to maintain or change experimental wind flow temperature；Pressure sensor installation
At gas tank outlet, velocity sensor be separately mounted at jet exit and hole body in, connect to form closed loop control with control system
Circuit processed.
2. a kind of array multi-function windtunnel drive system according to claim 1, it is characterised in that：The control master
Machine is a microsystem, acts on all controlled elements of this system, the mould that receiving sensor and human-computer interaction interface issue
Quasi- signal handles information and issues physics signal stream according to pre-set programs, forms closed circuit with other subsystems.
3. a kind of array multi-function windtunnel drive system according to claim 1, it is characterised in that：The man-machine friendship
Mutual interface is one or more control panels, is used for manual operation；The control executive component includes all kinds of multidigit multi-pass
Pressure regulator valve, speed governing valve, throttle valve and safety valve etc..
4. a kind of array multi-function windtunnel drive system according to claim 1, it is characterised in that：The air accumulator
Refer to that all kinds of design pressures for meeting national standard are not higher than the air accumulator of 45MPa not less than 15MPa, gas storage volume is designed as individually
Air accumulator is 1.5 cubic metres, and air accumulator is arranged perpendicular to power stream plate by array manner.
5. a kind of array multi-function windtunnel drive system according to claim 1, it is characterised in that：The vacuum tank
Refer to that vacuum degree is not less than the vacuum tank of 0.2MPa, design volume is 6.28 cubic metres, and vacuum tank is also arranged according to array manner.
6. a kind of array multi-function windtunnel drive system according to claim 1, it is characterised in that：The fluidic plate
By metal material or the plate of the high molecular material of high intensity production, it is divided into power stream plate and auxiliary fluidic plate.In fluidic plate
It is provided with the mounting hole of installation jet pipe, mounting hole is arranged in fluidic plate according to array manner.
7. a kind of array multi-function windtunnel drive system according to claim 1, it is characterised in that：The heating is cold
But system refers to liquid nitrogen cooling system and electromagnetic heating system, and the pipeline of heating and cooling system is installed on around spray head, and same
Horizontal position uses same temperature controller, simulates actual air layer temperature by changing the temperature on vertical direction
Variation.
8. a kind of array multi-function windtunnel drive system according to claim 1, it is characterised in that：The hole body is
Two sides are provided with the rectangular body shell of steel of water conservancy diversion gap.
9. a kind of array multi-function windtunnel drive system according to claim 8, it is characterised in that：Water conservancy diversion gap claims water conservancy diversion
Piece, be mounted in wind-tunnel two sides play tissue air-flow, avoid air-flow generate heavy turbulence phenomenon and cause to wind-tunnel generate compared with
The critical component of large impact.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111024355A (en) * | 2020-01-10 | 2020-04-17 | 湖南工程学院 | Wind field simulation device for southern mountainous area |
| CN112539909A (en) * | 2020-11-30 | 2021-03-23 | 中国空气动力研究与发展中心 | Gantry crane device for boundary layer measurement in pulse wind tunnel |
| CN113008508A (en) * | 2021-04-30 | 2021-06-22 | 华中科技大学 | Wind tunnel device for prolonging running time of hypersonic velocity temporary impulse type wind tunnel |
| CN114296490A (en) * | 2021-12-30 | 2022-04-08 | 中国汽车工程研究院股份有限公司 | Automobile environment wind tunnel temperature feedforward control method |
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