磁流体斜激波的碰撞

讨论了磁流体斜激波之间的碰撞及其与接触间断的相互作用规律，主要结论如下：（１）两个快激波碰撞后交换位置，同时出现－接触间断和一慢稀疏波对。（２）两个慢激波碰撞后交换位置且强度减弱。同时出现一接触间断和一快激波对。（３）一前缶快激波与一后向慢激波碰撞后交换位置，快激波强度增加，慢激波强度减弱，同时出现一后向快激波、一负接触间断和一前向慢稀疏波。（４）一前向快激波与一正（）接触间断相互作用后交换位置，

COLLISION OF MHD OBLIQUE SHOCKS

This paper discusses the collision of fast and slow MHD shocks as well as the interaction between fast or slow shocks and contact surfaces.The main conclusions are as follows.(l) Two fast shocks exchange their places after collision and a contact surface and a pair of slow rarefaction waves occur at the same time.(2)Two slow shocks exchange their places and are both weakened after collision,and a contact surface and a pair of fast shocks occur at the same time.(3)A forward fast shock and a reverse slow shock exchange their places after collision.The fast shock increases and the slow shock decreases in strength, and a reverse fast shock,a negative contact surface and a forward fast rarefaction wave are formed.(4)A forward fast shock and a positive(negative)contact surface exchange their places after interaction.Meanwhile, the fast shock diminishes, and a reverse fast rarefaction wave(shock),a reverse slow wave and a forward slow shock are produced.The reverse slow wave is either a shock for small(large)shock angles or a rarefaction wave otherwise.(5)A forward slow shock and a positive(negative)contact surface exchange their places after interaction. Meanwhile, the slow shock diminishes, and a reverse slow rarefaction wave(shock)and a pair of fast rarefaction waves (shocks)are produced.