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首页> 外文期刊>Applied Mechanics and Engineering >COMBINED HEAT AND MASS TRANSFER ON NON-DARCY NATURAL CONVECTION IN A FLUID SATURATED POROUS MEDIUM WITH THERMOPHORESIS
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COMBINED HEAT AND MASS TRANSFER ON NON-DARCY NATURAL CONVECTION IN A FLUID SATURATED POROUS MEDIUM WITH THERMOPHORESIS

机译：含热固性流体饱和多孔介质中非达西自然对流的传热传质联合

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摘要

The present investigation deals with the combined heat and mass transfer with the effects of thermal dispersion, radiation on non-Darcy natural convection in a fluid saturated porous medium with thermophoresis. The governing equations, reduced to local similarity boundary layer equations using suitable transformations are obtained. 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. For the fluids having the Lewis number Le=1.0, 10.0, numerical values of the local Stanton number are presented in a tabular form for different values of the thermophoretic parameter τ , thermal dispersion and thermal radiation for the two cases of Darcy and non-Darcy porous medium. The concentration distributions are shown graphically for various values of the thermophoretic parameter, thermal dispersion and thermal radiation.
机译：目前的研究是利用热泳在流体饱和的多孔介质中处理热与质量的结合以及热扩散，辐射对非达西自然对流的影响。使用适当的变换获得了简化为局部相似性边界层方程的控制方程。在流量方程中考虑了Forchheimer扩展。热扩散系数被假定为分子扩散系数和由于机械分散而产生的分散热扩散系数之和。 Rosseland逼近用于描述能量方程中的辐射热通量。对于路易斯数Le = 1.0，10.0的流体，以表格形式表示了达西和非达西两种情况下热泳参数τ，热扩散和热辐射的不同值的局部斯坦顿数的数值。多孔介质。用图形表示了热泳参数，热分散和热辐射的各种值的浓度分布。

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