MHD NATURAL CONVECTION FLOW WITH RADIATIVE HEAT TRANSFER PAST AN IMPULSIVELY MOVING VERTICAL PLATE WITH RAMPED TEMPERATURE IN THE PRESENCE OF HALL CURRENT AND THERMAL DIFFUSION

摘要: An investigation on an unsteady MHD natural convection flow with radiative heat transfer of a viscous, incompressible, electrically conducting and optically thick fluid past impulsively moving vertical plate ramped temperature in porous medium the presence Hall current thermal diffusion is carried out. exact solution momentum energy equations, under Boussinesq Rosseland approximations, obtained closed form by Laplace transform technique for both isothermal plates. Expressions skin friction Nusselt number plates are also derived. The numerical values velocity displayed graphically versus boundary layer coordinate y various pertinent parameters due to primary secondary flows presented tabular parameters.