Thermal Radiation and Viscous Dissipation Eects on MHD Heat and Mass Difussion Flow Past a Surface Embedded in a Porous Medium With Chemical Reaction

Abstract: The present paper deals with thermal radiation eects on the transient hydro-magnetic natural convection

ow past a

vertical plate embedded in a porous medium with mass diusion and

uctuating temperature about time at the plate, by

taking account the heat due to viscous dissipation in the presence of chemical reaction. The governing equations are solved

numerically by Ritz nite element method. The eects of various parameters entered into the equations of momentum,

energy and concentration are evaluated numerically and plotted graphically, while numerical values of variations in skin-

friction, rate of heat transfer in terms of Nusselt number at the plate are presented in tabular form. The results of the

study are discussed.

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Thermal Radiation and Viscous Dissipation E ects on MHD Heat and Mass Difussion Flow Past a Surface Embedded in a Porous Medium With Chemical Reaction