空间飞行器远尾区内等离子体与场的相互作用  

The Interaction of Plasma with the Field in the Wake Region of A Moving Body in Space

作　　者：胡涛平[1] 李晓卿[1] 

机构地区：[1]南京师范大学物理科学与技术学院,南京210097

出　　处：《天文学报》2003年第1期87-95,共9页Acta Astronomica Sinica

摘　　要：从理论上得到一组在考虑非静态极限下描述空间飞行器远尾区内等离子体与场之间的非稳态非线性相互作用耦合方程,并对其进行数值解,通过采用数值模拟计算方法,表明由于高频包络场的调制不稳定性,会产生密度空腔和电磁孤波,这对探测隐身飞行器有很重要的意义。Under the nonstatic limit, a set of equations are obtained theoretically, which describe the nonsteady, nonlinear interactions between plasma and field in the wake region of a moving body in space. The numerical calculations are also completed. The simulated results show that the potential solitons and density cavitons are formed due to the modula-tional instability if the envelope of high frequency modulational field is sufficiently intense. There will be important for detecting a disguised moving body.

关 键 词：空间飞行器 等离子体 数值模拟 隐身飞行器 密度空腔 电磁孤波 航天器 

分 类 号：V47[航空宇航科学与技术—飞行器设计]