Time sequence control measuring device and method based on supersonic vortex structure

Abstract

The invention discloses a time sequence control measuring device and method based on a supersonic vortex structure. The device comprises a supersonic vortex generating device, and a measurement control system and a membrane rupturing device which are connected with the supersonic vortex generating device, wherein the membrane rupturing device is arranged at one end of the supersonic vortex generating device, the measurement control system is connected with the supersonic vortex generating device through a sensor to collect pressure signals and carry out image collection by taking the pressureas a triggering condition, and flow field information of supersonic vortexes at a specific moment is obtained by setting delay time of the control system. According to the method, compressible vortexstructures with different modes can be accurately controlled and generated, the pressure of the driving section is accurately adjusted, and the supersonic compressible vortex structure is rapidly andeffectively obtained.

Description

technical field [0001] The invention relates to a technology in the field of aerospace, in particular to a timing control measurement device and method based on a supersonic vortex structure. Background technique [0002] The research on supersonic vortex structure is of great value to the injection mixing form of scramjet engine and the exhaust injection design of vector engine. One of the important factors affecting the shape of the supersonic vortex structure is the jet intensity, which is mainly affected by the driving pressure, driving gas and membrane rupture process. Based on this, how to produce a controllable and pure compressible vortex ring is of great significance to the theoretical research and engineering practice of high-speed compressible aerodynamics. [0003] At present, when the existing technology is used to generate the supersonic vortex structure through the shock tube, the membrane rupture method of thimble piercing is mostly used, and the membrane is...

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Problems solved by technology

[0004] Aiming at the problems of inconsistent jet intensity and poor test repeatability caused by the prior art, the present invention proposes a timing control measurement device and method based on a supersonic vortex structure, which can not only accurately control the generation of compressible vortex structures of different modes, but also accurately adjust It is of great significance and academic value for high-speed compressible aerodynamics, and it can also Provide experimental basis for engineering practice

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