Unsteady MHD Free Convective Flow Along A Vertical Porous Plate Embedded In A Porous Medium With Heat Generation, Variable Suction And Chemical Reaction Effects

Abstract

A two-dimensional laminar unsteady MHD free convective heat and mass transfer flow past a vertical porous plate immersed in a porous medium has been studied numerically in presence of chemical reaction, heat generation and variable suction. The governing partial differential equations are reduced to a system of self-similar equations using the similarity transformations. The resultant equations are then solved numerically using the Runge-Kutta method along with shooting technique. The effects of governing physical parameters on velocity, temperature and concentration as well as skin-friction coefficient, Nusselt number and Sherwood number are computed and presented in graphical and tabular forms. Comparisons with previously published work are performed and the results are found to be in excellent agreement.

Keywords: Free convection; Unsteady; MHD; chemical reaction; heat generation; variable suction; porous medium.