Thermal Dispersion–Radiation Effects on Non-Darcy Natural Convection in a Fluid Saturated Porous Medium

被引：0
作者：
A. A. Mohammadien
M. F. El-Amin
机构：
[1] South Valley University,Mathematics Department, Aswan Faculty of Science
来源：
Transport in Porous Media | 2000年 / 40卷
关键词：
radiation; thermal dispersion; natural convection;
D O I：
暂无
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学科分类号：
摘要：
The effects of thermal dispersion and thermal radiation on the non-Darcy natural convection over a vertical flat plate in a fluid saturated porous medium are studied. Forchheimer extension is considered in the flow equations. The coefficient of thermal diffusivity has been assumed to be the sum of molecular diffusivity and the dispersion thermal diffusivity due to mechanical dispersion. Rosseland approximation is used to describe the radiative heat flux in the energy equation. Similarity solution for the transformed governing equations is obtained. Numerical results for the details of the velocity and temperature profiles which are shown on graphs have been presented. The combined effect of thermal dispersion and thermal radiation, for the two cases Darcy and non-Darcy porous medium, on the heat transfer rate which are entered in tables is discussed.
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页码：153 / 163
页数：10
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