A lattice Boltzmann model for axisymmetric thermal flows through porous media

被引：53
|
作者：
Rong, Fumei [2 ]
Guo, Zhaoli [2 ]
Chai, Zhenhua [1 ]
Shi, Baochang [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Math & Stat, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2010年 / 53卷 / 23-24期
基金：
美国国家科学基金会;
关键词：
Lattice Boltzmann; Axisymmetric flow; Heat transfer; Porous media; BUOYANCY-DRIVEN CONVECTION; HEAT-TRANSFER; NATURAL-CONVECTION; BOUNDARY-CONDITIONS; BGK MODEL; EXCHANGERS; ANNULUS; SIMULATION;
D O I：
10.1016/j.ijheatmasstransfer.2010.07.005
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this paper, a new lattice Boltzmann model at representative elementary volume (REV) scale is proposed for axisymmetric thermal flows in porous media. In this model, a new equilibrium distribution function including porosity is proposed to describe the cases of variable porosity, and simple force term is adopted to achieve a better numerical stability. The numerical experiments, including five benchmark problems, demonstrate that the proposed LBM can be served as a feasible and efficient method for axisymmetric thermal flows through porous media. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5519 / 5527
页数：9
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