用于熵晶格玻尔兹曼方法的单弛豫时间模型。
Single relaxation time model for entropic lattice Boltzmann methods.
作者信息
Ansumali Santosh, Karlin Iliya V
机构信息
Department of Materials, Institute of Polymers, ETH-Zürich, ETH-Zentrum, Sonneggstrasse 3, ML J 19, CH-8092 Zürich, Switzerland.
出版信息
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 May;65(5 Pt 2):056312. doi: 10.1103/PhysRevE.65.056312. Epub 2002 May 20.
PMID:12059708
Abstract
For lattice Boltzmann methods based on entropy functions, we derive a collision integral which enables simple identification of transport coefficients, and which circumvents construction of the equilibrium. Implementation of the two-dimensional hydrodynamics demonstrates considerable increase of stability with respect to conventional lattice Boltzmann schemes.
摘要
对于基于熵函数的格子玻尔兹曼方法，我们推导了一个碰撞积分，它能简单地确定输运系数，并且避免了平衡态的构建。二维流体动力学的实现表明，相对于传统的格子玻尔兹曼格式，其稳定性有显著提高。
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