CN209606052U - A kind of balance strut for wind-tunnel hot exhaust interference test - Google Patents
A kind of balance strut for wind-tunnel hot exhaust interference test Download PDFInfo
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- CN209606052U CN209606052U CN201920307325.2U CN201920307325U CN209606052U CN 209606052 U CN209606052 U CN 209606052U CN 201920307325 U CN201920307325 U CN 201920307325U CN 209606052 U CN209606052 U CN 209606052U
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Abstract
The utility model discloses a kind of balance strut for wind-tunnel hot exhaust interference test, which includes strut main body, gas path module, water cooling module, debugging nozzle and test nozzle.Strut main body is used for jet flow air inlet for installing balance and model, gas path module, and water cooling module is for cooling down strut, to reduce the influence that the high temperature of spout gas measures balance.Jet flow air inlet uses the mixed gas of carbon tetrafluoride and nitrogen, by changing the proportion of two kinds of gas to adjust the specific heat ratio of mixed gas.The preceding only installation and debugging nozzle of test, debugs the total temperature stagnation pressure of jet flow；Debugging nozzle is removed when test, installs test nozzle and model, carries out wind tunnel test according to the state of debugging.The balance strut for wind-tunnel hot exhaust interference test of the utility model is suitable for the wind-tunnel thermal jet test under rarefied atmosphere environment, can measure influence of the Jet enterference to model aerodynamic force.
Description
Technical field
The utility model belongs to wind-tunnel technique field, and in particular to a kind of day for wind-tunnel hot exhaust interference test
Flat strut.
Background technique
With the development of aeronautical and space technology, the flight Mach number of aircraft is also being continuously improved, this control to aircraft
System proposes stern challenge.There are the control of traditional, pneumatic rudder face and jet control with relatively broad at present.
Jet control technology is to utilize to be mounted on jet flow reaction force caused by carry-on miniature jet engine
To the new control system that aircraft is directly controlled, compared with traditional rudder face control, jet control is suitable for All Speed Range
With full airspace, have many advantages, such as that response is fast, high-efficient；But the interference caused by jet flow, incoming flow interaction is a kind of typical case
Complex Phenomena in Vertical Bell Jar, current research is deep not enough.
In practical study, lateral jet is simulated in Chang Liyong wind tunnel test.Jet enterference wind tunnel test at present is ground
Study carefully based on the test of cold Jet enterference, hot exhaust interference test research is less, the main reason is that existing solid charge rocket
The true jet engine of simulation of engine leads to problems such as jet flow shakiness in chamber pressure, low efficiency, efficiency test time short.With
The continuous improvement of extensive application and jet control required precision of the jet control technology in aircraft, hot exhaust interfere wind-tunnel examination
Testing demand also constantly enhances, more urgent especially for the hot exhaust the Study of Interference under rarefied atmosphere environment.In order to accurately survey
Measure model aerodynamic force suffered under hot exhaust interference effect, need to design it is a kind of be assembled and used with wind-tunnel balance suitable for dilute
The strut of wind-tunnel hot exhaust interference test under thin atmospheric environment.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of balance branch for wind-tunnel hot exhaust interference test
Bar.
The balance strut for wind-tunnel hot exhaust interference test of the utility model, its main feature is that being suitable for rarefied atmosphere ring
Wind-tunnel hot exhaust interference test under border, the balance strut include strut main body, gas path module, water cooling module, debugging nozzle
And test nozzle；
The strut main body is cylinder, and the front end of strut main body is connected with balance by collet, strut main body
Rear end is equipped by the tulwar of the conical surface and wind-tunnel attack angle mechanism；
The gas path module includes the air inlet of airflow line and airflow line, and airflow line is fixed in strut main body
And it is coaxial with strut main body, air inlet is located in strut main body to be connected to external gas source, and the end of airflow line has in one
Chamber, inner cavity are opened in strut main body there are two threaded hole, and nozzle, another threaded hole joint test are debugged in a threaded hole connection
Nozzle；
The water cooling module includes water pipe, water circulation hole and cooling water cover, and water pipe is two and parallel is fixed on branch
In bar main body and the water pipe coaxial with strut main body, cooling water enter from a water pipe, flow through positioned at the intracorporal cavity of strut master
Water circulation hole after flowed out through another water pipe, cooling water cover, which is covered, seals water flow circuits on water circulation hole；
Pressure tap is provided on the debugging nozzle, the stagnation pressure of installation total-pressure probe measurement hot exhaust, is adjusted on pressure tap
It is also provided with thermometer hole on examination nozzle, the total temperature of thermocouple measurement hot exhaust is installed on thermometer hole；
Model cover board and test model are equipped, are provided with test nozzle outlet on model cover board, and test nozzle is from test nozzle
Outlet is stretched out, and test nozzle is concordant with model lid surface, is had the gap between test nozzle and test nozzle outlet.
The relationship of the diameter D of the diameter d and strut main body of the airflow line is d=1/4D, and the material of airflow line is
Brass.
The water circulation hole replaces with spiral shape circulating line.
The balance strut for wind-tunnel hot exhaust interference test of the utility model is suitable for the wind under rarefied atmosphere environment
The test of hole thermal jet, can measure influence of the Jet enterference to model aerodynamic force.
Detailed description of the invention
Fig. 1 is the three-dimensional axonometric drawing of the balance strut for wind-tunnel hot exhaust interference test of the utility model；
Fig. 2 is the bottom view of the balance strut for wind-tunnel hot exhaust interference test of the utility model；
Fig. 3 is that the debugging nozzle three-dimensional shaft in the balance strut for wind-tunnel hot exhaust interference test of the utility model is surveyed
Figure；
Fig. 4 is the debugging nozzle cross-sectional view in the balance strut for wind-tunnel hot exhaust interference test of the utility model；
Fig. 5 is that the test nozzle three-dimensional shaft in the balance strut for wind-tunnel hot exhaust interference test of the utility model is surveyed
Figure；
Fig. 6 is the test nozzle cross-sectional view in the balance strut for wind-tunnel hot exhaust interference test of the utility model；
Fig. 7 is the model scheme of installation of the balance strut for wind-tunnel hot exhaust interference test of the utility model；
In figure, 1. conical surface, 2. air inlet, 3. airflow line, 4. thermometer hole, 5. water cover 6. debugs 7. pressure tap 8. of nozzle
9. water pipe of test nozzle, 10. water circulation hole, 11. test nozzle exports 12. model cover boards.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Fig. 1 ~ 6, the balance strut for wind-tunnel hot exhaust interference test of the utility model include strut main body,
Gas path module, water cooling module, debugging nozzle 6 and test nozzle 8；
The strut main body is cylinder, and the front end of strut main body is connected with balance by collet, strut main body
Rear end is equipped by the tulwar of the conical surface 1 and wind-tunnel attack angle mechanism；
The gas path module includes the air inlet 2 of airflow line 3 and airflow line 3, and airflow line 3 is fixed on strut master
In vivo and coaxial with strut main body, air inlet 2 is located at outside strut main body to be connected to external gas source, and the end of airflow line 3 has
One inner cavity, inner cavity are opened in strut main body there are two threaded hole, and nozzle 6, another threaded hole are debugged in a threaded hole connection
Joint test nozzle 8；
The water cooling module includes water pipe 9, water circulation hole 10 and cooling water cover 5, and water pipe 9 is two parallel fixations
The coaxial water pipe in strut main body and with strut main body, cooling water enter from a water pipe, flow through intracorporal positioned at strut master
It is flowed out behind the water circulation hole 10 of cavity through another water pipe, cooling water cover 5, which is covered, seals water flow circuits on water circulation hole 10；
Pressure tap 7 is provided on the debugging nozzle 6, the stagnation pressure of installation total-pressure probe measurement hot exhaust on pressure tap 7,
It is also provided with thermometer hole 4 on debugging nozzle 6, the total temperature of thermocouple measurement hot exhaust is installed on thermometer hole 4.
Embodiment 1
The course of work of the present embodiment is as follows:
1. installation and debugging nozzle 6 measures total temperature stagnation pressure, obtain testing required operating status, removes debugging nozzle 6, and seal
It is stifled；
2. install test nozzle 8, as shown in fig. 7, install model in wind-tunnel, by the front end of strut main body by wedge key and
Pin key is mounted on the rear end of balance, and model in wind tunnel is installed by collet in the front end of balance, after model in wind tunnel
End is covered on test nozzle 8, and there are model cover board 12, model cover board in the surface of model in wind tunnel corresponding with test nozzle 8
Test nozzle outlet 11 is provided on 12, test nozzle 8 is stretched out from test nozzle outlet 11, test nozzle 8 and 12 table of model cover board
Face is concordant, has the gap between test nozzle 8 and test nozzle outlet 11.The diameter d of the airflow line 3 and diameter D of strut main body
Relationship be d=1/4D, the material of airflow line 5 is brass.
3. when test, after Flow Field in Wind Tunnel foundation, spout gas is flowed into from air inlet 2, flow through in airflow line 3 reaches
Chamber is finally sprayed from test nozzle 8, to measure influence of the Jet enterference to model aerodynamic force.
Water circulation hole in the present embodiment can be replaced spiral shape circulating line.
Claims (3)
1. a kind of balance strut for wind-tunnel hot exhaust interference test, which is characterized in that the balance strut includes strut
Main body, gas path module, water cooling module, debugging nozzle (6) and test nozzle (8)；
The strut main body is cylinder, and the front end of strut main body is connected with balance by collet, the rear end of strut main body
It is equipped by the tulwar of the conical surface (1) and wind-tunnel attack angle mechanism；
The gas path module includes the air inlet (2) of airflow line (3) and airflow line (3), and airflow line (3) is fixed on branch
In bar main body and coaxial with strut main body, air inlet (2) is located in strut main body to be connected to external gas source, airflow line (3)
End have an inner cavity, inner cavity opens that there are two threaded holes, threaded hole connection debugging nozzle (6) in strut main body, separately
One threaded hole joint test nozzle (8)；
The water cooling module includes water pipe (9), water circulation hole (10) and cooling water cover (5), and water pipe (9) is two parallel
It is fixed in strut main body and the water pipe coaxial with strut main body, cooling water enters from a water pipe, flow through positioned at strut main body
The water circulation hole (10) of interior cavity is flowed out by another water pipe, and cooling water cover (5) are covered close on water circulation hole (10)
Seal water flow circuits；
It is provided with pressure tap (7) on the debugging nozzle (6), the total of total-pressure probe measurement hot exhaust is installed on pressure tap (7)
Pressure is debugged and is also provided with thermometer hole (4) on nozzle (6), and the total temperature of thermocouple measurement hot exhaust is installed on thermometer hole (4)；
Model cover board (12) and test model are equipped, and test nozzle outlet (11), test nozzle (8) are provided on model cover board (12)
It is stretched out from test nozzle outlet (11), test nozzle (8) and model cover board (12) flush, test nozzle (8) and test are sprayed
It is had the gap between mouth outlet (11).
2. the balance strut according to claim 1 for wind-tunnel hot exhaust interference test, which is characterized in that the gas
The relationship of the diameter D of the diameter d and strut main body in flow tube road (3) is d=1/4D.
3. the balance strut according to claim 1 for wind-tunnel hot exhaust interference test, which is characterized in that the water
Stream circulation port (10) replaces with spiral shape circulating line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307325.2U CN209606052U (en) | 2019-03-12 | 2019-03-12 | A kind of balance strut for wind-tunnel hot exhaust interference test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307325.2U CN209606052U (en) | 2019-03-12 | 2019-03-12 | A kind of balance strut for wind-tunnel hot exhaust interference test |
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| Publication Number | Publication Date |
|---|---|
| CN209606052U true CN209606052U (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920307325.2U Active CN209606052U (en) | 2019-03-12 | 2019-03-12 | A kind of balance strut for wind-tunnel hot exhaust interference test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765031A (en) * | 2019-03-12 | 2019-05-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of balance strut for wind-tunnel hot exhaust interference test |
| CN114813025A (en) * | 2021-12-28 | 2022-07-29 | 中国航天空气动力技术研究院 | Gas generating device for thermal spray interference wind tunnel test |
-
2019
- 2019-03-12 CN CN201920307325.2U patent/CN209606052U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765031A (en) * | 2019-03-12 | 2019-05-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of balance strut for wind-tunnel hot exhaust interference test |
| CN114813025A (en) * | 2021-12-28 | 2022-07-29 | 中国航天空气动力技术研究院 | Gas generating device for thermal spray interference wind tunnel test |
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