INFLUENCE OF RELAXATION ON SHOCK DETACHMENT

被引：37

作者：

HORNUNG, HG

SMITH, GH

机构：

[1] Department of Physics, Australian National University, Canberra

来源：

JOURNAL OF FLUID MECHANICS | 1979年 / 93卷 / JUL期

关键词：

D O I：

10.1017/S0022112079001865

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

By establishing that the length scale governing the detachment of a shock wave from a wedge is the distance from the leading edge to the sonic line, and by considering the view of observers with different length scales, it is predicted that the detachment distance increases gradually with wedge angle for relaxing flow and more rapidly in a perfect gas. Both of these features are confirmed by experiments in the free-piston shock tunnel. The influence of other length scales is discussed. The phenomenon is related to a relaxation effect in which a subsonic layer grows from the translational-rotational shock as the wedge inclination is increased beyond the frozen sonic point. © 1979, Cambridge University Press. All rights reserved.

引用

页码：225 / &