Multipoint Conservative Projection Method for Computing the Boltzmann Collision Integral for Gas Mixtures

被引：13

作者：

Dodulad, O. I. ^{[1
]}

Tcheremissine, F. G. ^{[2
]}

机构：

[1] Moscow Inst Phys & Technol, Dolgoprudnyi, Russia

[2] Dorodnicyn Comp Ctr RAS, Moscow, Russia

来源：

28TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS 2012, VOLS. 1 AND 2 | 2012年 / 1501卷

关键词：

Boltzmann Equation; Collision Integral; Gas Mixture; Conservative Projection Method; SHOCK-WAVE STRUCTURE; EQUATION; SEPARATION;

D O I：

10.1063/1.4769529

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A new projection method for computing the Boltzmann collision integral at a discrete momentum grid that is conservative by mass, momentum, and energy, and annul the integral from the Maxwellian distribution function is proposed. The method is applied for computing gas mixtures with large difference of molecular masses where it is computationally more efficient compared to the previously proposed projection method.

引用

页码：302 / 309

页数：8

共 11 条

[1] Development of applied software for analysis of gas flows in vacuum devices [J].