Hydromagnetic free convective and mass transfer flow of a viscous stratified liquid

In steady hydromagnetic free convection and mass transfer of an incompressible, electrically conducting, viscous stratified liquid in a porous medium past an infinite vertical, porous, isothermal plate fluctuating with time dependent suction velocity in the presence of transversely applied magnetic field of negligible magnetic Reynolds number under negligible pressure gradient has been studied. Perturbation technique followed by Pop has been used to obtain the velocity, temperature and concentration field. Skin-friction coefficient at the plate, heat transfer terms of Nusselt number and mass transfer in terms of Sherwood number have also been obtained. The effects of different parameters on velocity and skin-friction have been discussed with the help of a graph and a table respectively. (author)