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火箭燃气喷流与弹体超声速绕流干扰流场数值分析
鞠玉涛, 郑亚
南京理工大学机械学院
摘要:
绕弹体的超声速气流与火箭发动机燃气喷流相互作用,在弹底部形成了复杂的干扰流场。应用四阶的MUSCLTVD格式,求解雷诺平均的N-S方程,对这一复杂流动进行了数值模拟,得到了流场结构随不同喷口压力比的变化规律。
关键词:  火箭发动机  超声速尾流  纳维尔-斯托克斯方程  数值模拟  尾流干扰
DOI:
分类号:V430
基金项目:
NUMERICAL STUDIES FOR INTERACTION FLOWFIELD BETWEEN SUPERSONIC FLOW AROUND BODY AND JET FLOW EXHAUSTING FROM ROCKET
Ju Yutao, Zheng Ya
School of Machinery,Nanjing Univ.of Science and Technology,Nanjing,210094
Abstract:
The interaction between supersonic external flow and an exhaust jet forms a complex flowfield near the missile afterbody.The research about this interaction flows was completed with fourth order MUSCL TVD scheme to solve the Reynolds averaged N S equations.The flowfield structures observed and it’s relation with jet pressure ratio were obtained.
Key words:  Rocket engine  Supersonic wake  Navier Stockes equations  Numerical simulation  Wake interaction