• EFFECT OF THERMAL RADIATION ON MHD FREE COVECTION FLOW PAST A FLAT PLATE WITH CONVECTIVE SURFACE BOUNDARY CONDITION

Abstract

The present paper analyzes the effect of thermal radiation on MHD free convective viscous incompressible boundary layer flow over a flat plate in the presence of internal heat generation and convective boundary condition. It is assumed that  lower surface  of  the plate is in contact with a hot fluid while a stream of cold fluid flows steadily over the upper surface with a heat source that decays exponentially. The Rosseland approximation is used to describe radiative heat transfer as we consider optically thick fluids. The governing boundary layer equations are transformed into a system of ordinary differential equations using similarity transformations, which are then solved numerically by employing fourth order Runge-Kutta method along with shooting technique. The effects of the material parameters like the internal heat generation parameter, Prandtl number, local Biot number, magnetic parameter and radiation parameter on the velocity, temperature as well as the skinfriction coefficient, local Nusselt number and plate surface temperature are computed numerically and  illustrated through graphs and tables. The present results are compared with the existing results and found to be a good agreement.