부산대학교 도서관

The steady two dimensional laminar MHD mixed convection stagnation point flow and heat transfer past a heated semi-infinite permeable surface embedded in a porous medium have been discussed using the mixed convection effects on the flow. The results are obtained by solving the coupled nonlinear partial differential equations describing the conservation of mass, momentum and energy by a perturbation technique. The present study concludes that when local Grashof number and Reynolds number are of the same order, instability in the flow and heat transfer phenomena occur. Further, the fluid with low thermal diffusivity gives rise to constant velocity and temperature gradients.