静止介质中激波动力学的差分方法  

A Differential Method of Geometrical Shock Dynamics in Quiescent Media

作　　者：尹协振[1] 杨慧菁 

机构地区：[1]中国科学技术大学近代力学系

出　　处：《中国科学技术大学学报》1993年第3期318-324,共7页JUSTC

基　　金：国家自然科学基金

摘　　要：介绍了一种求解激波动力学方程的差分方法,并用该方法计算了一系列激波绕射和反射问题,尤其是,完成了激波在凹圆柱表面和双劈表面反射的计算。计算结果表明,该方法不仅具有简便、快速、准确的优点,而且激波动力学中的shock-expansion和shock-shock能在计算中自动产生。In this paper, a differential method for solving geometrical shock dynamic equations is presented and a series of phenomena of diffraction and reflection of shock waves, in particular, the reflections of shocks on the surfaces of concave cylinders and double wedges, are calculated by using this method. The results of the calculation show that, in addition to its simplicity and accuracy, this method is also capable of automatically formming shock-expansion and shock-shock in shock dynamics during calculation.

关 键 词：激波 激波动力学 差分方法 

分 类 号：O354.5[理学—流体力学]