Effect of MHD and Thermal Diffusion on Natural Convection Oscillatory Flow Past Plate with Viscous Heating

This communication investigates the unsteady two-dimensional oscillatory flow of an incompressible viscous fluid past an infinite vertical, porous flat plate with the effect of magnetic field. It is assume that free stream velocityoscillates in times about a constant mean. Assuming the periodic heat flux at the plate with the effect of viscous dissipation, the set of non-linear coupled differentialequations is solved by regular perturbationtechnique. The approximate solutions are obtained for velocity and temperature field. The effect of various parameters on mean flow velocity, transient velocity, mean skin friction and transient temperature are discussed and shown graphically.