Modularized solid rocket scramjet engine test platform

Abstract

The invention discloses a modularized solid rocket scramjet engine test platform, which comprises an isolation section and a combustion chamber structure, wherein the combustion chamber structure comprises a combustion chamber shell and an inner molded surface assembly arranged in the combustion chamber shell; the inner molded surface assembly comprises a plurality of inner molded surface units connected in sequence, every two adjacent inner molded surface units are connected in a matched mode in a concave-convex lap joint mode, and combustion chamber inner flow channels communicating in sequence are formed in the inner molded surface units; and each inner molded surface unit is fixedly connected with the combustion chamber shell. Through independent design of the combustion chamber shell and the inner molded surface assembly, repeated use of the combustion chamber shell is achieved, the test cost can be reduced, and the test period can be shortened; and the test of engines with different configurations can be realized by replacing the inner molded surface unit, so that a test foundation is laid for carrying out the performance prediction and integrated optimization design of the scramjet engine of the solid rocket and completing the matching of engine parts and the optimization research of the overall performance.

Description

technical field [0001] The invention relates to the technical field of solid rocket scramjet, in particular to a modular solid rocket scramjet test platform. Background technique [0002] The configuration of the solid rocket scramjet engine was first proposed by Xia Zhixun of the National University of Defense Technology and others. The engine uses the fuel-rich gas generated by the gas generator to mix and burn with air to generate high-temperature gas, and the nozzle expands to generate thrust. Compared with the liquid scramjet, the solid rocket scramjet has the advantages of simple structure, low cost, short combat response time, good maneuverability and safety, and long storage time. Compared with the solid fuel scramjet, it has the advantages of easy flow Therefore, the solid rocket scramjet has broad prospects as a power system for future hypersonic cruise weapons, and has been widely recognized. The attention of scholars at home and abroad. [0003] The existing re...

AI Technical Summary

Problems solved by technology

The cost of numerical simulation is low, the cycle is short, and the results can be obtained quickly, and rich flow field information can be obtained. However, due to the limitation of numerical algorithms, full-parameter simulation cannot be carried out. At the same time, the simulation results are relatively random, and the correctness needs to be deliberated. Therefore, numerical simulation Technology is generally used as a supplement to theoretical research and experimental research

The phenomenon of ground direct connection test is intuitive and the data is reliable, which is the test standard of

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