Radiative Effect on Natural Convection Flows in Porous Media |
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| Authors: | Mohammadein A A Mansour M A Abd El Gaied Sahar M Gorla Rama Subba Reddy |
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| Institution: | (1) Mathematics Department, Faculty of Science, South Valley University, ASWAN, EGYPT;(2) Mathematics Department, Faculty of Science, Assuit University, Assuit, Egypt;(3) Mechanical Engineering Department, Cleveland State University, Cleveland, Ohio, 44115, U.S.A. |
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| Abstract: | A regular two-parameter perturbation analysis based upon the boundary layer approximation is presented here to study the radiative effects of both first- and second-order resistances due to a solid matrix on the natural convection flows in porous media. Four different flows have been studied, those adjacent to an isothermal surface, a uniform heat flux surface, a plane plume and the flow generated from a horizontal line energy source on a vertical adiabatic surface. The first-order perturbation quantities are presented for all these flows. Numerical results for the four conditions with various radiation parameters are tabulated. |
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| Keywords: | radiation natural convection porous medium heat transfer |
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