The effect of heat and mass transfer on MHD flow in channels and ducts

Transport phenomena involving the combined influence of thermal and concentration buoyancy are often encountered in many engineering systems and natural environments. Combined heat and mass transfer problems with chemical reactions are important in many processes and received a considerable amount of attention in recent years. Obviously an understanding of this transport process is desirable in order to effectively control the overall transport characteristics. In this context we make an attempt to investigate the effect of dissipation the Soret effect and radiation on the unsteady double diffusive flow of a viscous and electrically conducting fluid through a porous medium in a vertical channel. Also investigated the Heat and Mass transfer of a viscous fluid with radiation effect in channels/ducts. We discuss the effect of radiation thermo-diffusion dissipation and heat sources on the convective heat and mass transfer flow of a viscous fluid through a porous medium in a rectangular duct.