Head and Mass Transfer on Unsteady MHD Free Convective Flow Pass a Semi-Infinite Vertical Plate with Soret Effect

Abstract

An unsteady free convective MHD flow of a viscous fluid past a semi-infinite vertical moving porous plate embedded in a porous medium is investigated with heat source, thermo diffusion (Soret effect). The constant velocity is assumed in plate to move in the direction MHD flow while the free stream velocity is assumed to follow the exponentially increasing small perturbation law. The external flow field is considered to be Soret Parameters and uniform values in the boundary layer adjacent to the vertical plate with fluid suction. This is investigated in both aiding and opposing flow by using Perturbation technique; the dimensionless governing equations are solved analytically. The effects of various parameters on the velocity, temperature and concentration fields as well as the skin friction coefficient, Nusselt Number and the Sherwood number are obtained graphically obtained.