Shock wave structure of multi-temperature Grad 10-moment equations for a binary gas mixture

被引：3
|
作者：
Bisi, M. [1 ]
Groppi, M. [1 ]
Macaluso, A. [1 ]
Martalo, G. [1 ]
机构：
[1] Univ Parma, Dept Math Phys & Comp Sci, Parco Area Sci 53-A, I-43124 Parma, Italy
来源：
EPL | 2021年 / 133卷 / 05期
关键词：
MULTIPLE SUB-SHOCKS; TEMPERATURE;
D O I：
10.1209/0295-5075/133/54001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A multi-temperature formal hydrodynamic limit of kinetic equations, based on Grad-type approximation of the distribution functions, is employed for the analysis of the steady shock problem in a binary mixture. The presence of a singular barrier and its effects on the occurrence of either smooth profiles or of weak solutions with a discontinuity is investigated for varying Mach number. Some numerical simulations of mixtures of two noble gases are presented and commented on, with reference also to analogous phenomena in different model descriptions. Copyright (C) 2021 EPLA
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页数：7
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