球面激波对平面的马赫反射的简化处理  

SIMPLE DISPOSAL OF MACH REFLECTION OF SPHERICAL SHOCK WAVE ON A PLANE

作　　者：吴寿荣[1] 

机构地区：[1]中国科学技术大学

出　　处：《空气动力学学报》1990年第4期480-485,共6页Acta Aerodynamica Sinica

摘　　要：本文利用Whitham绕射理论,给出了球面激波对平面绕射时马赫杆的近似解,同时求得了马赫反射三波点迹线及壁面超压。另外还导出了新的面积函数表达式。在壁面超压的计算上,这些理论结果与用Whitham方程求得的数值解相符合。This paper derives an approximate solution to the Mach stem of diffraction of a spherical shock wave by a plane using the diffraction theory proposed by Whitham. Also, it gives the loci of Mach triple points and the overpressure on the plane. In addition, the author present a new expression of the area function. The agreement between the theroretical results and the numerical solutions of whitham's equations for the evaluation of the overpressure on the plane is favorable.

关 键 词：激波 反射 面积函数 马赫杆 

分 类 号：V211.14[航空宇航科学与技术—航空宇航推进理论与工程]