Detonation-driving shock tunnel explosive discharge device

A shock wave wind tunnel and detonation technology, which is used in measurement devices, aerodynamic tests, instruments, etc., can solve the problems of reducing the driving gas pressure and affecting the wind tunnel test time, and achieve the effect of increasing the test time.

Active Publication Date: 2014-06-04
INST OF MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] However, after the unloading section is used in the detonation shock tunnel, a series of rapidly propagating sparse waves will be generated to propagate to the driving section of the shock tunnel, which will rapidly reduce the pressure of the driving gas and also affect the wind tunnel test time

Method used

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  • Detonation-driving shock tunnel explosive discharge device
  • Detonation-driving shock tunnel explosive discharge device

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Embodiment Construction

[0013] figure 1 It is a structural schematic diagram of an embodiment of the detonation-driven shock tunnel detonation device of the present invention.

[0014] Such as figure 1 As shown, the present invention comprises: shock wave wind tunnel 100, and this shock wave wind tunnel 100 comprises detonation driving section 4 and unloading section 1, and a detonation throttling is installed between detonation driving section 4 and unloading section 1 The device is used to adjust the flow rate of the high-pressure air flow formed in the detonation driving section 4 into the detonation section 1, and a diaphragm 3 is also arranged on the side of the detonation throttling device close to the detonation section 1.

[0015] Such as figure 1 As shown, one embodiment of the detonation and throttling device of the present invention is to adopt a plate 2 with a certain thickness. A certain number of through holes 5 are opened in the thickness direction of the board 2 . The quantity of ...

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Abstract

The invention discloses a detonation-driving shock tunnel explosive discharge device, which comprises a shock tunnel, wherein the shock tunnel comprises a detonation driving section and an explosive discharge section, an explosive discharge throttling device is installed between the detonation driving section and the explosive discharge section and is used for adjusting flow rate of high-pressure airflow entering the explosive discharge section and formed on the detonation driving section, and the side of the explosion discharge throttling device which is close to the explosive discharge section is provided with a diaphragm. The explosive discharge throttling device is additionally arranged between the explosive discharge section and the detonation driving section and is used for adjusting the flow rate of the high-pressure airflow entering the explosive discharge section and formed on the detonation driving section, so on the one hand, the flow of the airflow is adjusted, and on the other hand the pressure of the air inside the detonation driving section is not decreased rapidly, and the experiment time of the detonation driving shock tunnel is further increased.

Description

technical field [0001] The invention relates to a technique for the experimental research of an air-breathing high-speed aircraft, in particular to a detonation-driven shock tunnel detonation device used for ground simulation equipment of a hypersonic aircraft. Background technique [0002] During the development of a hypersonic vehicle, a large number of ground simulation experiments are required to obtain data on the aerodynamic force and propulsion performance of the vehicle. The pulse-type shock tunnel is a kind of experimental equipment that uses unsteady shock wave compression to generate high-temperature and high-pressure gas, and plays an important role in hypersonic flow simulation. Among them, the detonation-driven shock tunnel is a way to generate unsteady shock waves by using combustible gas detonation, which has the characteristics of low operating costs. [0003] The detonation-driven shock tube was first proposed by Bird in 1957. Mr. Yu Hongru from the Insti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04
Inventor 姜宗林王春赵伟俞鸿儒
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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