The Effect of Chemical Reaction on an Unsteady MHD Free Convective Flow Through Porous Medium with Hall Current

Abstract

In this paper we investigate the effects of Chemical Reaction, Hall currents, Soret and Dufour on unsteady MHD free convective flow through porous medium in the presence of a magnetic field and first order chemical reaction. The similarity solutions were obtained using suitable transformations and the resulting similarity ordinary differential equations were solved by finite difference method. A parametric study illustrating the influence of different flow parameters on velocity, temperature and concentration fields are investigated.  The skin frictions at the plate due to tangential and lateral velocity fields are obtained in non-dimensional form. The effects of the various physical parameters on these fields are discussed with help of tables and graphs.