Numerical Solution for Thermal Radiation Effect on Inclined Magnetic Field of Mhd Free Convective Heat Transfer Dissipative Fluid Flow Past a Moving Vertical Porous Plate with Variable Suction

摘要

An investigation was carried out on the numerical solution for thermal radiation effect on inclined magnetic field of magneto hydrodynamic (MHD) free convective heat transfer dissipative fluid flow past a moving vertical porous plate with variable suction. The dimensionless governing equations are formulated in (y~*, t~*) co-ordinates system with appropriate boundary condition s and the radiative heat flux takes the Rosseland approximation. The equations are solved by using an implicit finite difference method of Crank-Nicolson type. The effects of various parameters on the velocity and temperature fields as well as the Coefficient of skin-friction and Nusselt number were presented graphically and in tabulated forms. It was observed that, when the radiation parameter increases, the velocity and temperature increases in the boundary layer. The effect of increasing values of Hartman number (M) which resulted in decrease in velocity distribution, while, increase in temperature across the boundary layer because of the application of transfer magnetic field which resulted in a restrictive type of force (Lorenz force) similar to drag force which tends to resist the fluid and this reducing its velocity. This model finds applications in geophiscs, metallurgic and also in the design of high temperature industrial processing systems.