Lattice Boltzmann Simulation on Natural Convection Heat Transfer for Phase-change with Heterogeneously Porous Medium

被引：2

作者：

Shao, Jiugu ^{[1
]}

Liu, Yang ^{[2
]}

Xu, Yousheng ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Peoples R China

[2] Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China

来源：

ADVANCED RESEARCH ON MATERIAL SCIENCE, ENVIRONMENTAL SCIENCE AND COMPUTER SCIENCE | 2011年 / 322卷

关键词：

LBM; phase-change; variable porous medium; heat transfer; HYDRATE DISSOCIATION;

D O I：

10.4028/www.scientific.net/AMR.322.61

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The problem of the natural convection heat transfer for phase-change in a square filled with heterogeneously porous medium is solved by lattice Boltzmann method. The lattice Boltzmann equation is governed by the heat conduction equation combined with enthalpy formation. The velocity of liquid part is fully coupled with the temperature distribution through relaxation time. It is found that the high Ra number has significantly impact on the heat transfer and convection, but the low Ra number has little influence on the natural convection. The porosity of the middle porous medium is nothing to do with the heat transfer and convection. The result is of great importance to engineering interest and also provides a new solution to phase transition.

引用

页码：61 / +

页数：2

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