RADIATION EFFECT ON UNSTEADY FREE CONVECTION OSCILLATORY COUETTE FLOW THROUGH A POROUS MEDIUM WITH PEROIDIC WALL TEMPERATURE AND HEAT GENERATION

The present paper analyzes the radiation effects on the heat transfer and magnetohydrodynamic free convection flow through a highly porous plate. It is assume that free stream velocity oscillates in times about a constant mean. Assume that periodic temperature at the moving plate. The momentum equation and energy equation which govern the flow field are solved by regular perturbation technique. Analytical solutions are derived for transient velocity, transient temperature profiles and tangent of phase skin-friction. The behavior of the mean velocity, mean temperature and Nusselt number has been discussed for variations in the physical parameters with the help of graphs and tables. The exactitude of the problem has been certified by matching with the previous available work and the agreement between the results is outstanding, which established confidence in the numerical results described in this article.