• VISCOUS DISSIPATION AND THERMAL RADIATION EFFECTS ON AN UNSTEADY MHD CONVECTION FLOW PAST A SEMI-INFINITE VERTICAL PERMEABLE MOVING POROUS PLATE

*P.V. Satya Narayana, D. Ch. Kesavaiah, S. Venkataramana

Abstract


An analytical study for the problem of unsteady two-dimensional hydromagnetic laminar mixed convection with thermal radiation, viscous dissipation and first-order chemical reaction on a boundary layer flow of viscous, electrically conducting fluid past a semi-infinite vertical permeable moving plate embedded in a uniform porous medium has been presented. The non-linear coupled partial differential equations are solved by perturbation technique. The results obtained show that the velocity, temperature and concentration fields are appreciably influenced by the presence of chemical reaction, thermal stratification and magnetic field. It is observed that the effect of chemical reaction parameter and schmid number decreases the velocity, temperature and concentration profiles in the boundary layer. Also, the effects of the various parameters on the skin-friction coefficient and the rate of heat transfer at the surface are discussed.

Keywords


MHD, Chemical reaction, Porous medium, Viscus dissipation, Thermal radiation.

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