Dufour and Soret Effect on Unsteady MHD Free Convection and Mass Transfer Flow Past an Impulsively Started Vertical Porous Plate Considering with Heat Generation

An analysis is carried out to study the effects of MHD, Dufour and Soret on unsteady free convection and mass transfer flow, past an impulsively started infinite vertical porous flat plate of a viscous incompressible and electrically conducting fluid in the presence of porous medium. The non-linear partial differential equations, governing the problem under consideration, have been transformed by a similarity transformation into a system of ordinary differential equations, which are linearized and then solved numerically by using the implicit finite difference method. The resulting velocity, temperature and concentration distributions are shown graphically for different values of the parameters entering into the problem. Finally, the numerical values of the local-skinfriction, local-Nusselt number, and local-Sherwood number are also presented in a tabular form.