Effect Research of Cavity Configuration on Net Thrust of Hypersonic Vehicle

Abstract:

The effect of the cavity design parameters on the integrated performance parameter net thrust of hypersonic vehicle was investigated by computer numerical simulation methods in this paper. The cavity design parameters include position value XL and length-to-depth ratio L/D. The research purpose of the paper is to develop ideas for the integrated design of hypersonic vehicle. The studied results show that the effect curve charts of the ratio L/D on net thrust are similar at variable cavity positions. The extreme value of net thrust is obtained at some value of L/D. The fuel mixture touch underside step of the combustor easily to cause eddy loss which make against combustion and lead to net thrust descend while the cavity locates down step in the combustor. While the position of cavity on more combustor back, the combustion process is not built completely and the gas is exhausted quickly, which induces the more net thrust loss.

• Periodical: Applied Mechanics and Materials (Volumes 427-429)
• Pages: 271-274
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.427-429.271
• Online since: September 2013
• Authors: Shuang Lin Gao*, Fang Wang, Lei Luo, Jie Tang Zhu
• Keywords: Cavity, Combustor, Hypersonic Vehicle, Net Thrust, Numerical Simulation

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