Molecular Dynamics Simulation of Gas Molecules Reflected from Rough Surface

被引：0

作者：

Aksenova, O. A. ^{[1
]}

Khalidov, I. A. ^{[1
]}

机构：

[1] St Petersburg State Univ, Dept Math & Mech, St Petersburg 198504, Russia

来源：

27TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS, 2010, PTS ONE AND TWO | 2011年 / 1333卷

关键词：

Surface roughness; atoms scattering from surface; numerical computation; rarefied gas; flows in channels;

D O I：

10.1063/1.3562687

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Direct statistical Monte-Carlo simulation of rarefied gas molecular flow near a rough surface is studied on the base of analytical approximation of scattering function V and of the momentum and energy exchange coefficients [1-3]. The computation time is reduced due to the expansion of the roughness operator (S) over cap [2-6], which is used to express the scattering function V on rough surface in the form V = (S) over cap V(0). The representation of the roughness operator is derived that is convenient to use both in numerical DSMC methods and in analytical investigations.

引用

页码：441 / 446

页数：6

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