Entropic lattice Boltzmann models for hydrodynamics in three dimensions

被引：119

作者：

Chikatamarla, S. S.

Ansumali, S.

Karlin, I. V. ^{[1
]}

机构：

[1] ETH, Inst Energy Technol, CH-8092 Zurich, Switzerland

[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 639798, Singapore

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.97.010201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Efficient, nonlinearly stable entropic lattice Boltzmann models for computational fluid dynamics are presented. A new method of fast evaluation of equilibria to machine precision is proposed. Analytical solution is found for the collision step which guarantees stability and thermodynamic consistency of the scheme. As an example, a novel 15-velocity lattice Boltzmann model is derived and validated with a simulation of a three-dimensional backward-facing step flow.

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页数：4

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