Natural convection in horizontal annulus filled with an anisotropic porous medium

被引：0
|
作者：
Aboubi, K. [1 ]
Robillard, L. [1 ]
Vasseur, P. [1 ]
机构：
[1] Department of Mechanical Engineering, Ecole Polytechnique, University of Montreal, Montreal, Que., Canada
来源：
International Journal of Numerical Methods for Heat and Fluid Flow | 1998年 / 8卷 / 06期
关键词：
Anisotropy - Approximation theory - Density (specific gravity) - Finite difference method - Kinematics - Matrix algebra - Nusselt number - Porous materials - Pressure effects - Specific heat - Tensors - Thermal conductivity - Thermal diffusion - Thermal expansion - Vectors - Viscosity;
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学科分类号：
摘要：
Natural convection in a horizontal anisotropic porous annulus with isothermal boundary conditions applied on both inner and outer boundaries was investigated. Anisotropy in permeability was considered with principal axes oriented at a constant but arbitrary angle with respect to the vertical direction. The problem was formulated in terms of Darcy-Boussinesq approximation and solved numerically, using time-marching finite difference method, until a steady state was reached. It was found that for an arbitrary inclination of the principal axes which differed from the horizontal direction, no symmetry of the flow and temperature field existed with respect to the vertical diameter.
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页码：689 / 702
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