Modeling of the interaction between an air shock wave and a porous screen

被引:0
作者
A. A. Gubaidullin
D. N. Dudko
S. F. Urmancheev
机构
[1] Russian Academy of Sciences,Tyumen’ Branch of the Institute of Theoretical and Applied Mechanics, Siberian Division
来源
Combustion, Explosion and Shock Waves | 2000年 / 36卷
关键词
Shock Wave; Porous Medium; Porous Layer; Rarefaction Wave; Total Stress;
D O I
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中图分类号
学科分类号
摘要
Some specific features of the reflection of air shock waves from a rigid wall coated with the layer of a porous substance is studied numerically. A mathematical two-speed model with two stress tensors that has been constructed by methods of the mechanics of multiphase media is used for studying the wave processes in saturated porous media. The numerical-modeling technique based on the Lax-Wendroff two-step scheme is developed. The processes of passage of a “ledge”-type wave through the “gas-porous medium” interface and of reflection from a rigid wall covered with a porous material are considered, the effect of the porous-medium and wave parameters on the reflection is analyzed, and the numerical results are compared with the experimental data obtained by other authors.
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页码:496 / 505
页数:9
相关论文
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