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.

引用

页数：8

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