MAGNETO-HYDRODYNAMIC UNSTEADY FREE CONVECTION FLOW OF A VISCOUS-INCOMPRESSIBLE FLUID PAST A HOT VERTICAL PLATE WITH VARIABLE SUCTION

Abstract

In this paper it proposed to study the unsteady convection flow of an incompressible electrically conducting viscous-fluid past a hot vertical plate with variable suction in the presence of a transverse magnetic field. The suction velocity is assumed to vary exponentially with time. The flow phenomena are characterized by the non-dimensional parameters like Prandtl number, Grashoff number, Magnetic number and exponential parameter.

            Approximate solutions for velocity, temperature distributions and skin-friction have been obtained. The velocity and temperature distributions have been represented graphically. There follows a comprehensive discussion of the effects of magnetic and suction parameters on the velocity and temperature fields in this paper. A comparison of the present work with the previous works in the subject have been discussed.