A lattice Boltzmann BGK model for simulation of micro flows

被引：2

作者：

Niu, XD ^{[1
]}

Shu, C ^{[1
]}

Chew, YT ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore

来源：

EUROPHYSICS LETTERS | 2004年 / 67卷 / 04期

关键词：

D O I：

10.1209/epl/i2003-10307-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a lattice Boltzmann BGK model for simulation of micro flows. This model is based on the kinetic theory and the entropic lattice Boltzmann method (S. Ansumali and I. V. Karlin, J. Stat. Phys., 107 (2002) 291) but the relaxation time is re-defined in terms of the Knudsen number, and a diffuse-scattering boundary condition (DSBC) is adopted to consider the velocity slip at the wall. Simple theoretical analysis and numerical validation show that the proposed model gives good predictions of the micro fluidic behaviors.

引用

页码：600 / 606

页数：7

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