Double MRT lattice Boltzmann model for axisymmetric convective flow in porous media

被引：7
|
作者：
Wang, Zuo [1 ]
Liu, Yan [2 ]
Zhang, Jiazhong [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Sch Mech Engn, Xian 710072, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 112卷
基金：
中国国家自然科学基金;
关键词：
Axisymmetric convection; Porous media; Lattice Boltzmann model;
D O I：
10.1016/j.ijheatmasstransfer.2017.04.053
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A double multiple-relaxation-time lattice Boltzmann (MRT LB) model for the axisymmetric thermal flow in porous media at the representative element volume, which uses the Darcy-Brinkmann-Forchheimer equation to describe the flow in porous region, is presented. The present model utilizes non-orthogonal transformation matrixes instead of the classical orthogonal ones. Validations are carried out in term of two numerical tests, including natural convection in a vertical annulus without and with a porous medium, respectively, and the results show good agreement with the previous studies. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：810 / 813
页数：4
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