Numerical stability of Entropic versus positivity-enforcing lattice Boltzmann schemes

被引：32

作者：

Tosi, F.

Ubertini, S.

Succi, S.

Chen, H.

Karlin, I. V.

机构：

[1] Univ Florence, Dipartimento Matemat U Dini, I-50134 Florence, Italy

[2] Univ Roma Tor Vergata, Dipartimento Ingn Meccan, I-00133 Rome, Italy

[3] CNR, Ist Applicaz Calcolo, I-00161 Rome, Italy

[4] Exa Corp, Burlington, MA 01802 USA

[5] ETH Zentrum, Swiss Fed Inst Technol, Aerothermochem & Combust Syst Lab, CH-8092 Zurich, Switzerland

来源：

MATHEMATICS AND COMPUTERS IN SIMULATION | 2006年 / 72卷 / 2-6期

关键词：

lattice Boltzmann scheme; entropic schemes; positivity-enforcing;

D O I：

10.1016/j.matcom.2006.05.007

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A preliminary study of the non-linear stability properties of entropic schemes versus positivity-enforcing (FIX-UP) schemes is presented for the case of two-dimensional cavity flow. It is shown that, although they operate on fairly distinct schedules, both methods achieve substantial stability enhancements over the standard single-time relaxation Lattice Boltzmann scheme. (c) 2006 IMACS. Published by Elsevier B.V. All rights reserved.

引用

页码：227 / 231

页数：5

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