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Journal of Porous Media
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ISSN Druckformat: 1091-028X
ISSN Online: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v10.i5.70
pages 503-514

Magnetohydrodynamics and Radiative Effects on Free Convection Flow of Fluid with Variable Viscosity from a Vertical Plate through a Porous Medium

M. Modather M. Abdou
Department of Mathematics, Faculty of Science Aswan, South Valley University, Aswan, Egypt; Department of Mathematics, College of Science and Humanity Studies, Salman Bin AbdulAziz University, Al-Kharj, KSA
S.M.M. EL-Kabeir
Department of Mathematics, Salman bin Abdulaziz University, College of Science and Humanity Studies, Al-Kharj, 11942, Saudi Arabia; Department of Mathematics, Aswan University, Faculty of Science, 81528, Egypt

ABSTRAKT

The effect of thermal radiation on free convection flow with variable viscosity and uniform suction velocity along a uniformly heated vertical porous plate embedded in a porous medium in the presence of a uniform transverse magnetic field is analyzed. The viscosity of the fluid is taken as a function of temperature. The effect of internal heat generation/absorption is also considered. The Rosseland diffusion approximation is used to describe the radiative heat flux in the energy equation. The governing equations are solved using the local nonsimilarity method. Numerical results for the transient velocity, the temperature, the local and average skin friction, and the rate of heat are shown in graphic and tabulated forms.


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