LATTICE BOLTZMANN METHOD AND DIFFUSION IN MATERIALS WITH LARGE DIFFUSIVITY RATIOS

被引：8
|
作者：
Walther, Edouard [1 ]
Bennacer, Rachid [1 ]
De Sa, Caroline [1 ]
机构：
[1] Univ Paris Saclay, ENS Cachan, LMT, Paris, France
来源：
THERMAL SCIENCE | 2017年 / 21卷 / 03期
关键词：
lattice Boltzmann; diffusion; diffusivity ratio; oscillations; D(2)Q(5); D(2)Q(9); EQUATION;
D O I：
10.2298/TSCI141027206W
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This work is centered on the safe usage of the lattice Boltzmann method for 2-D pure diffusion. The basics of the method for pure diffusion are first elucidated using a new definition given in the paper The oscillating behavior and safe conditions of use are then explored in the case of homogeneous material as well as heterogeneous materials with circular and plane interfaces. As a conclusion, the range of valid relaxation factors is given for a correct use of lattice Boltzmann method.
引用
收藏
页码：1173 / 1182
页数：10
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