Numerical investigation of toroidal shock wave focusing in a cylindrical chamber

被引：0
|
作者：
H. Teng
Z. Jiang
Z. Han
S. H. R. Hosseini
K. Takayama
机构：
[1] Chinese Academy of Sciences,LHD, Institute of Mechanics
[2] University of Science and Technology of China,Department of Modern Mechanics
[3] Tohoku University,Shock Wave Research Center, Institute of Fluid Science
来源：
Shock Waves | 2005年 / 14卷
关键词：
DCD scheme; Toroidal shock wave focusing; Spherical double Mach reflection;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, focusing of a toroidal shock wave propagating from an annular shock tube into a cylindrical chamber was investigated numerically with the dispersion controlled dissipation (DCD) scheme. The first case for an incident Mach number of 1.5 was conducted and compared with experiments for validation. Then, several cases were calculated for higher incident Mach numbers varying from 2.0 to 5.0, and complicated flow structures were observed. The numerical study was mainly focused on two aspects: focusing process and flow structures. The process, including diffraction, focusing, and reflection, is displayed to reveal the focusing mechanism, and the flow structures at different incident. Mach numbers are used to demonstrate shock reflection styles and focusing characteristics.
引用
收藏
页码：299 / 305
页数：6
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