MHD Heat and Mass Transfer Slip Flow in a Vertical Porous Channel with Variable Suction and Heat Source

摘要

An analysis of unsteady free convection flow in a vertical channel with variable suction and variable permeability in the presence of magnetic field in a slip flow regime is presented. The permeability of the porous medium and suction/injection velocity at the plates decrease exponentially with time. Approximate solutions of velocity and temperature distribution, concentration, skin friction and Nusselt number are obtained. It is observed that skin friction decreases with the increase of slip parameter at the plates.