Soret and Hall Effect on Heat and Mass Transfer in MHD Free Convective Flow Through a Porous Medium in a Vertical Porous Channel

Abstract

An unsteady free convective flow through porous media of viscous, incompressible, electrically conducting fluid through a vertical porous channel is studied. A magnetic field of uniform strength is applied perpendicular to the vertical channel. The magnetic Reynolds number is assumed very small so that the induced magnetic field is negligible. The injection and suction velocity at both plates are constant. The pressure gradient in the channel varies periodically with time along the axis of the channel. Taking Hall current into account, equations of motion, energy, and concentration are solved. The effects of the various parameters, entering into the problem, on the primary and secondary velocity are shown graphically while the skin friction coefficient, Nusselt number and Sherwood number obtained in terms of amplitude and phase angle are listed in tabular form and discussed.