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
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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