Calculation of the effective diffusivity of heterogeneous media using the lattice-Boltzmann method

被引：21
|
作者：
AlvarezRamirez, J
NievesMendoza, S
GonzalezTrejo, J
机构：
[1] División de Ciencias Básicas e Ingenieria, Universidad Autónoma Metropolitana, México Distrito Federal, 09000
来源：
PHYSICAL REVIEW E | 1996年 / 53卷 / 03期
关键词：
D O I：
10.1103/PhysRevE.53.2298
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The effective diffusivity of a heterogeneous medium is calculated numerically as a function of the inclusion fraction using the lattice-Boltzmann approach. Effective diffusivities are calculated for structures consisting of either permeable or nonpermeable inclusions distributed in a continuous phase. Two-dimensional simulations show good agreement with results obtained by means of Monte Carlo simulations of tracer diffusion. Numerical results are shown that are in agreement with the predictions of Maxwell's equation, for small inclusion fractions.
引用
收藏
页码：2298 / 2303
页数：6
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