Hydrodynamic Equations from a BGK Model for Inert Gas Mixtures

被引：5
|
作者：
Bisi, M. [1 ]
Bobylev, A. V. [2 ]
Groppi, M. [1 ]
Spiga, G. [1 ]
机构：
[1] Univ Parma, Dept Math Phys & Comp Sci, Parco Area Sci 53-A, I-43124 Parma, Italy
[2] Russian Acad Sci, Keldysh Appl Math Inst, Moscow 125047, Russia
来源：
31ST INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS (RGD31) | 2019年 / 2132卷
关键词：
D O I：
10.1063/1.5119630
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
We derive hydrodynamic equations from a consistent BGK model for inert mixtures, which preserves the structure of the original Boltzmann equations, with a sum of binary collision operators in each kinetic equation. A suitable Chapman-Enskog method allows to obtain an explicit closure of macroscopic equations at Navier-Stokes level, with transport coefficients in agreement with physical expectations.
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页数：8
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