超声速逆向喷流的减阻与降热

推进技术 ›› 2010, Vol. 31 ›› Issue (3): 261-264.

超声速逆向喷流的减阻与降热

王兴,裴曦,陈志敏,徐敏

西北工业大学航空学院;西北工业大学航空学院;西北工业大学航空学院;西北工业大学航空学院

发布日期:2021-08-15
基金资助:
国家自然基金重大研究计划(90816008)

Supersonic with counter-flowing jets on drag and heat-transfer reduction

School of Aeronautics,Northwestern Polytechnical Univ.,Xi’an 710072,China;School of Aeronautics,Northwestern Polytechnical Univ.,Xi’an 710072,China;School of Aeronautics,Northwestern Polytechnical Univ.,Xi’an 710072,China;School of Aeronautics,Northwestern Polytechnical Univ.,Xi’an 710072,China

Published:2021-08-15

摘要/Abstract

摘要： 利用流动控制技术改变流场结构的方法,对逆向冷喷流将激波推离物体表面以达到减阻减热的效果,进行了数值模拟计算。通过计算给出了钝头体在超声速流场中有无逆向喷流的压力场和温度场的比较,结果表明,逆向喷流对钝头体表面的减阻和减热起到了明显的作用。

关键词: 超声速流;逆向喷流+;阻力;数值仿真

Abstract: An active flow control concept using counter-flowing jets to significantly modify the external flow fields and strongly weaken or disperse the shock-waves of supersonic vehicles to reduce the wave drag was investigated.The blunt body with and without counter flowing jet was numerically simulated to validate the control technology.The results show that the counter flowing jet can push front shock wave far away from the head of the blunt body,which can reduce drag and temperature remarkably.

Key words: Supersonic flow;Counter-flowing jet+;Drag;Numerical simulation

王兴,裴曦,陈志敏,徐敏. 超声速逆向喷流的减阻与降热[J]. 推进技术, 2010, 31(3): 261-264.