Strong Explosion Model of Gas Dynamics of a Rocket Plume in Upper Atmosphere

摘要：

An expansion of a rocket exhaust plume in the direction perpendicular to the rocket motion is studied. A comparison is made of the numerical calculations with a self-similar approximation for a strong cylindrically symmetric explosion. It is shown that if a rocket velocity, V∞, is high enough and exceeds the sum of an exhaust gas velocity, Ve and a sound velocity, Vs, (V∞>Ve+Vs), there might be formed, for a short time, a gas-dynamic hole around a rocket flight trajectory in the upper atmosphere where the plume gas concentration is less than the ambient gas concentration at a given altitude. The density and temperature profiles of the transversal plume expansion are calculated.

作者: MOLCHANOV Alexander PLATOV Yulii

作者单位: Lebedev Physical Institute of the RAS,Moscow 117924,Leninsky pr.53,Russia Pushkov Institute of Terrestrial Magnetism,Ionosphere and RadioVawes Propagation RAS,Troitsk,Moscow

会议类型: 国际会议

会议名称: 2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)

会议地点: 南京

会议语种:英文

页码: 821-824

在线出版日期: 2011-09-20（万方平台首次上网日期，不代表论文的发表时间）