Unsteady MHD Mixed Convection Flow with Heat and Mass Transfer over a Vertical Plate in a Micropolar Fluid-Saturated Porous Medium

The combined effects of Soret and Dufour on an unsteady mixed convection magnetohydrodynamics heat and mass transfer in a micropolar fluid saturated Darcian porous medium in the presence of thermal radiation, heat generation, Ohmic heating and chemical reaction have been investigated. The transformed boundary layer equations are solved numerically by applying Keller-box method. Comparison of numerical results is made with the previous published results under limiting cases and found to be in good agreement. In this study, we consider both strong concentration and weak concentration. The influence of various embedded flow parameters on the local skin friction, the local Nusselt number and the local Sherwood number have been analyzed through graphs carefully. It is found that there is a smooth transition from small time solution (xi approximate to 0) to large time solution (xi approximate to 1).