Unsteady oblique shock waves

被引：4

作者：

Emanuel, G ^{[1
]}

Yi, TH ^{[1
]}

机构：

[1] Univ Oklahoma, Sch Aerosp & Mech Engn, Norman, OK 73019 USA

来源：

SHOCK WAVES | 2000年 / 10卷 / 02期

关键词：

unsteady oblique shock waves; unsteady to steady velocity transformation; sensitivity analysis; shock capturing and shock fitting algorithm;

D O I：

10.1007/s001930050184

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A spatially and temporally local analysis is provided for unsteady, oblique shock waves, in which the flow is assumed to be two-dimensional or axisymmetric. Three unsteady parameters, in a laboratory frame, are viewed as the known independent variables. These are the upstream Mach number, the shock Mach number, and the angle of the shock relative to the instantaneous upstream velocity. Other steady and unsteady parameters, such as the velocity turn angles and downstream Mach numbers, are evaluated in closed form, in terms of these three quantities. Treads are assessed, and a sensitivity analysis is provided. It is suggested that the theory may find application in converting a shock capturing algorithm; at an early time during the computational process, into a shock fitting algorithm.

引用

页码：113 / 117

页数：5