CN206756421U - A kind of low-speed wind tunnel model - Google Patents
A kind of low-speed wind tunnel model Download PDFInfo
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- CN206756421U CN206756421U CN201720652095.4U CN201720652095U CN206756421U CN 206756421 U CN206756421 U CN 206756421U CN 201720652095 U CN201720652095 U CN 201720652095U CN 206756421 U CN206756421 U CN 206756421U
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Abstract
It the utility model is related to a kind of low-speed wind tunnel model, including fan section, rectification section, test section and expansion segment, supply air system is provided with fan section, honeycomb is provided with rectification section, test section material is transparent material, the detection means that the support of installation object under test is provided with test section and is connected with object under test, detection means includes pressure plectrum, a sensors and a single-chip microcomputers, pressure plectrum is attached to the lower section of object under test, pressure plectrum is connected with a sensors, a sensors are connected with a single-chip microcomputers, supply air system includes fan fixed mount and blower fan, blower fan is connected with c sensors, c sensors are connected with controller.Wind tunnel model of the present utility model is integrally designed using segmentation structure, various pieces play different effects and mutual cooperation, the mobility status of entity ambient gas can be simulated, and the utility model cost is low, conveniently moving, observation are directly perceived, disclosure satisfy that middle school or regular higher educational institutions are used for the requirement of classroom instruction.
Description
Technical field
Teaching equipment technical field is the utility model is related to, specifically, refers to a kind of low-speed wind tunnel model.
Background technology
Wind-tunnel is to produce and control in a manual manner air-flow, for the flowing of simulated flight device or entity ambient gas
Situation, and mensurable air-flow to the action effect of entity and observes a kind of pipe-like experimental facilities of physical phenomenon, it be into
Row aerodynamic experiment is the most frequently used, one of maximally effective instrument.The China Higher Educate Train talent, many courses are directed to air
The related content of power, therefore have very big demand to teaching wind-tunnel.
But all the time, because existing wing tunnel test apparatus is complicated, requires high, manufacturing cost to actuating unit
It is high so that China university wind tunnel laboratory is studied mainly as longitudinal science fund national and at the provincial and ministerial level and large project
Experimental place, and use groups are mainly College Teachers, master, doctoral candidate and other related scientific research personnel, for just high
In, the efficiency of Undergraduate Experimental Teaching do not played substantially.Therefore, the physics opened up at present in middle school and regular higher educational institutions
On classroom, wind tunnel experiment demonstration is general can only all to use the multimedia video about wind-tunnel on network to carry out aided education, unfavorable
Visual understanding in student to content, has had a strong impact on quality of instruction.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of low-speed wind tunnel model, to meet middle school or common high
It is used for the requirement of classroom instruction Deng universities and colleges.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of low-speed wind tunnel model, including fan section,
Rectification section, test section and expansion segment, the fan section is interior to be provided with supply air system, and honeycomb, test section material are provided with rectification section
Matter is transparent material, the detection means that the support of installation object under test is provided with test section and is connected with object under test.
Operation principle of the present utility model is：Air-flow is led into rectification section by supply air system, airflow passes rectification section
It is changed into steady air flow after honeycomb, air-flow enters test section and acted on object under test, passes through the test section energy of transparent material
The physical phenomenon of object under test is enough observed, the size of active force suffered by object under test, expansion segment can be measured by detection means
Airflow reflux can be avoided and influence experimental data.
The beneficial effects of the utility model are：Wind tunnel model is integrally designed using segmentation structure, and various pieces play not
Same effect and mutual cooperation, the mobility status of entity ambient gas can be simulated, and the utility model cost is low, movement side
Just, observation is directly perceived, disclosure satisfy that middle school or regular higher educational institutions are used for the requirement of classroom instruction.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, the detection means includes pressure plectrum, a sensors and a single-chip microcomputers, and pressure plectrum is attached to determinand
The lower section of body, pressure plectrum are connected with a sensors, and a sensors are connected with a single-chip microcomputers.
It is using the above-mentioned further beneficial effect of scheme：When airflow function is on pressure plectrum, pressure plectrum is to be measured
The bottom of object produces pressure, and the pressure conversion that a sensors will act on pressure plectrum is electric signal and sent to a monolithics
Machine, a single-chip microcomputers can calculate pressure value of the airflow function on object under test according to resulting magnitude of voltage, and this pressure value is
For value of lift of the airflow function in object under test bottom.
Further, the detection means includes spring, and spring one end is connected with support bottom, the spring other end with it is to be measured
Object is connected, and graduation mark is identified with the side wall of test section.
It is using the above-mentioned further beneficial effect of scheme：When airflow function is on object under test, air-flow measuring targets
Caused lift rises object under test, and then extends spring, experimenter by the graduation mark that is identified in test section side wall,
The elongation of spring can be drawn, can also obtain acting on object under test further according to the elongation and coefficient of elasticity of spring
Value of lift.
Further, the supply air system includes the fan fixed mount being arranged in fan section and installed in fan fixed mount
On blower fan, blower fan is connected with c sensors, and c sensors are connected with controller.
It is using the above-mentioned further beneficial effect of scheme：Controller and c sensors can change the rotating speed of blower fan to obtain
Air-flow different in flow rate is obtained, so as to meet the experiment needs of experimenter.
Further, the honeycomb is provided with rope or smog syringe.
It is using the above-mentioned further beneficial effect of scheme：It is fixed on light and fine and soft rope on honeycomb, can basis
Whether the amplitude observation air-flow of rope shake is stablized；Flowing by smog caused by smog syringe with air-flow, can also see
Examine whether air-flow is stablized.
Further, the support is carbon-point.
It is using the above-mentioned further beneficial effect of scheme：Carbon-point is simple in construction, small volume, the branch as object under test
Frame, be advantageous to reduce support interferences caused by stream field, so as to improve the accuracy of experimental data.In addition, carbon-point good toughness,
It is not easy to break, object under test is kept relative stabilization in experimentation, and carbon-point is also convenient for the peace of object under test
Dress.
Further, the expansion segment trailer is provided with speed detection instrument, and it is mono- that speed detection instrument includes fan, b sensors and b
Piece machine, fan are arranged on the afterbody of expansion segment, and fan is connected with b sensors, and b sensors are connected with b single-chip microcomputers.
It is using the above-mentioned further beneficial effect of scheme：When expansion segment blowout airflow function on fan, can cause
The rotation of electric fan, b sensors measure the rotating speed of flabellum, and velocity amplitude is sent to b single-chip microcomputers, and b single-chip microcomputers are according to wind
The velocity amplitude of fan flabellum rotating speed can obtain the wind pressure value of blower fan blowout air-flow.
Further, the fan section, rectification section, test section and expansion segment material are PVC board.
It is using the above-mentioned further beneficial effect of scheme：PVC board cost is low, hardness is big, intensity is high, any surface finish is put down
It is whole, it on the one hand can make weight saving of the present utility model, consequently facilitating it is mobile, on the other hand, because PVC board any surface finish is put down
It is whole, additionally it is possible to reduce the hole wall of wind tunnel model to drag effects caused by air-flow.
Further, the free end of the fan section is provided with protective cover.
It is using the above-mentioned further beneficial effect of scheme：Protective cover can avoid experimenter that hand is stretched into blower fan and caused
Security incident.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model；
Fig. 2 is stereogram of the present utility model.
In accompanying drawing, the part representated by each label is as follows：
1st, fan section, 2, rectification section, 3, test section, 4, expansion segment, 5, blower fan, 6, honeycomb, 7, support, 8, determinand
Body, 9, fan fixed mount, 10, protective cover.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
A kind of low-speed wind tunnel model, as shown in Figure 1 and Figure 2, including fan section 1, rectification section 2, test section 3 and expansion segment
4, fan section 1 is interior to be provided with fan fixed mount 9, and blower fan 5 is provided with fan fixed mount 9, and protection is provided with the free end of fan section 1
Cover 10, causes security incident to avoid experimenter that hand is stretched into blower fan 5.Blower fan 5 is connected with c sensors, and c sensors are connected with
Controller, experimenter can change the rotating speed of blower fan 5 by c sensors and controller, to obtain air-flow different in flow rate.
As shown in Figure 1 and Figure 2, honeycomb 6 is provided with rectification section 2, is changed into stable air-flow after airflow passes honeycomb 6,
Light and fine and soft rope is fixed with honeycomb 6, when air current flow, restricts and is shaken with air-flow, experimenter can be according to rope shake
Whether amplitude observation air-flow is stablized.Or smog syringe is installed on honeycomb 6, experimenter passes through produced by smog syringe
Smog with the flowing of air-flow, can also observe whether air-flow is stablized.
As shown in Figure 1 and Figure 2, test section 3 is made using the glass of the high grade of transparency, or test section 3 is provided with and is easy to
The window being made using the glass of the high grade of transparency of observation, carbon-point is provided with test section 3, is provided with carbon-point to be measured
Pressure plectrum is posted in object 8, the lower section of object under test 8, and pressure plectrum is connected with a sensors, and a sensors are connected with a single-chip microcomputers.
When airflow function is on pressure plectrum, the bottom of pressure plectrum measuring targets 8 produces pressure, and a sensors will act at pressure
Pressure conversion on plectrum can calculate outlet for electric signal and transmission to a single-chip microcomputers, a single-chip microcomputers according to resulting magnitude of voltage
The pressure value that stream is acted on object under test 8, this pressure value are value of lift of the airflow function in object under test bottom.
As another embodiment, spring is installed in the bottom of carbon-point, the other end of spring is connected with object under test 8
Connect, graduation mark is identified in the side wall of test section 3.When airflow function is on object under test 8, produced by air-flow measuring targets 8
Lift object under test 8 is increased, and then extend spring, experimenter, can be with by the graduation mark that is identified in the side wall of test section 3
The elongation of spring is drawn, the liter acted on object under test 8 can also be obtained further according to elongation and the coefficient of elasticity of spring
Force value.
As shown in Figure 1 and Figure 2, the afterbody of expansion segment 4 is provided with speed detection instrument, speed detection instrument include fan, b sensors with
And b single-chip microcomputers, fan are arranged on the afterbody of expansion segment 4, fan is connected with b sensors, and b sensors are connected with b single-chip microcomputers.
When expansion segment blowout airflow function on fan, the rotation of electric fan can be caused, b sensors measure the rotating speed of flabellum,
And send velocity amplitude to b single-chip microcomputers, b single-chip microcomputers can obtain blower fan blowout air-flow according to the velocity amplitude of electric fan rotating speed
Wind pressure value.
Above-mentioned fan section 1, rectification section 2, test section 3 and the material of expansion segment 4 are PVC board, and PVC board cost is low, hardness
Greatly, intensity is high, any surface finish is smooth, on the one hand can make weight saving of the present utility model, consequently facilitating mobile, the opposing party
Face, because PVC board any surface finish is smooth, additionally it is possible to reduce the hole wall of wind tunnel model to drag effects caused by air-flow.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (9)
- A kind of 1. low-speed wind tunnel model, it is characterised in that：Including fan section（1）, rectification section（2）, test section（3）And expansion segment （4）, the fan section（1）It is interior to be provided with supply air system, rectification section（2）It is interior to be provided with honeycomb（6）, test section（3）Material is transparent Material, in test section（3）It is interior to be provided with installation object under test（8）Support（7）And and object under test（8）The detection means of connection.
- 2. low-speed wind tunnel model according to claim 1, it is characterised in that：The detection means includes pressure plectrum, a is passed Sensor and a single-chip microcomputers, pressure plectrum are attached to object under test（8）Lower section, pressure plectrum is connected with a sensors, a sensors It is connected with a single-chip microcomputers.
- 3. low-speed wind tunnel model according to claim 1, it is characterised in that：The detection means includes spring, spring one End is connected with support bottom, the spring other end and object under test（8）It is connected, scale is identified with the side wall of test section Line.
- 4. low-speed wind tunnel model according to claim 1, it is characterised in that：The supply air system includes being arranged on fan section （1）Interior fan fixed mount（9）And installed in fan fixed mount（9）On blower fan（5）, blower fan（5）It is connected with c sensors, c Sensor is connected with controller.
- 5. low-speed wind tunnel model according to claim 1, it is characterised in that：The honeycomb（6）It is provided with rope or smog Syringe.
- 6. low-speed wind tunnel model according to claim 1, it is characterised in that：The support is carbon-point.
- 7. the low-speed wind tunnel model according to any one of claim 1 to 6, it is characterised in that：The expansion segment（4）Afterbody is set There is speed detection instrument, speed detection instrument includes fan, b sensors and b single-chip microcomputers, and fan is arranged on expansion segment（4）Afterbody, Fan is connected with b sensors, and b sensors are connected with b single-chip microcomputers.
- 8. the low-speed wind tunnel model according to any one of claim 1 to 6, it is characterised in that：The fan section（1）, rectification Section（2）, test section（3）And expansion segment（4）Material is PVC board.
- 9. the low-speed wind tunnel model according to any one of claim 1 to 6, it is characterised in that：The fan section（1）Freedom End is provided with protective cover（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720652095.4U CN206756421U (en) | 2017-06-07 | 2017-06-07 | A kind of low-speed wind tunnel model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720652095.4U CN206756421U (en) | 2017-06-07 | 2017-06-07 | A kind of low-speed wind tunnel model |
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| Publication Number | Publication Date |
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| CN206756421U true CN206756421U (en) | 2017-12-15 |
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| CN201720652095.4U Expired - Fee Related CN206756421U (en) | 2017-06-07 | 2017-06-07 | A kind of low-speed wind tunnel model |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318212A (en) * | 2018-04-17 | 2018-07-24 | 成都工匠之星科技有限公司 | A kind of experimental section of teaching demonstration wind-tunnel |
| CN109243263A (en) * | 2018-08-30 | 2019-01-18 | 北京航空航天大学 | A kind of Table top type DC low-speed wind-tunnel of teaching demonstration and experiment |
| CN109469634A (en) * | 2018-10-12 | 2019-03-15 | 中国航发成都发动机有限公司 | A kind of large size air source apparatus |
| CN110412315A (en) * | 2019-08-07 | 2019-11-05 | 中国气象局气象探测中心 | Integral-type wind element calibrating installation |
| CN114279672A (en) * | 2021-12-09 | 2022-04-05 | 中国科学院新疆生态与地理研究所 | Intensive wind tunnel structure capable of changing wind speed in layering manner |
-
2017
- 2017-06-07 CN CN201720652095.4U patent/CN206756421U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318212A (en) * | 2018-04-17 | 2018-07-24 | 成都工匠之星科技有限公司 | A kind of experimental section of teaching demonstration wind-tunnel |
| CN109243263A (en) * | 2018-08-30 | 2019-01-18 | 北京航空航天大学 | A kind of Table top type DC low-speed wind-tunnel of teaching demonstration and experiment |
| CN109469634A (en) * | 2018-10-12 | 2019-03-15 | 中国航发成都发动机有限公司 | A kind of large size air source apparatus |
| CN110412315A (en) * | 2019-08-07 | 2019-11-05 | 中国气象局气象探测中心 | Integral-type wind element calibrating installation |
| CN114279672A (en) * | 2021-12-09 | 2022-04-05 | 中国科学院新疆生态与地理研究所 | Intensive wind tunnel structure capable of changing wind speed in layering manner |
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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: 20171215 Termination date: 20190607 |