Unsteady MHD free convection flow in a casson nano fluid through porous medium with suction and heat source

The unsteady MHD flow of a casson nano fluid past a moving vertical permeable semi infinite flat plate with constant heat source through porous medium is studied theoretically. The temperature is assumed to be fluctuating harmonically with time from a constant mean at the plate. Similarity transformations are used to convert partial differential equations to ordinary differential equation and the solved by using perturbation technique to obtain expressions for velocity field, temperature field, skin friction and rate of heat transfer. The results are discussed in detailed by using graphs and observed the effect of different parameters.