Non-Darcian Forced Convection Heat Transfer over a Flat Plate in a Porous Medium with Variable Viscosity and Variable Prandtl Number

摘要

The steady laminar boundary layer flow in a non-Darcian porous medium over a flat plate with temperature-dependent viscosity is studied taking into account the variation of fluid viscosity and fluid Prandtl number with temperature. The results are obtained with the direct numerical solution of the boundary layer equations and concern the wall heat transfer, the wall shear stress and velocity, and temperature profiles across the boundary layer. The results of the present work are different from those existing in the literature, which have been obtained with the assumption of a constant Prandtl number.