Effects of heat source/sink on mhd flow and heat transfer over a shrinking sheet with mass suction

Abstract

An analysis is made to study the effects heat source/sink on the steady two dimensional magnetohy- drodynamic (MHD) boundary layer flow and heat transfer past a shrinking sheet with wall mass suction. In the dynamic system, a uniform magnetic field acts normal to the plane of flow. The governing partial differential equations are transformed into self-similar ordinary differential equations using similarity transformations. Then the obtained self-similar equations are solved by finite difference method using quasilinearization technique. From the analysis it is found that the velocity inside the boundary layer increases with increase of wall mass suction and magnetic field and accordingly the thickness of the momentum boundary layer decreases. The tem- perature decreases with Hartmann number, Prandtl number and heat sink parameter and the temperature increases with heat source parameter. Furthermore, for strong heat source heat absorption at the sheet occurs. © Bangladesh Uni. of Engg. & Tech.