NON-DARCY EFFECTS ON CONVECTIVE BOUNDARY-LAYER FLOW PAST A SEMIINFINITE VERTICAL PLATE IN SATURATED POROUS-MEDIA

The composite effects of viscosity, porosity, buoyancy parameter, ther mal conductivity ratio and non-Darcy effects of Brinkman friction and Forscheimmer quadratic drag on the mixed convection boundary layer flo w past a semiinfinite plate in a fully-saturated porous regime are the oretically and numerically investigated using Keller's implicit finite -difference technique and a double-shooting Runge-Kutta method. The Br inkman Forcheimer-extended Darcy model is implemented in the hydrodyna mic boundary layer equation. The effects of the various non-dimensiona l thermofluid parameters, viz Grashof number, Darcy number, and Forchh eimer number, and also porosity, thermal conductivity and viscosity pa rameters on the velocity and temperature fields are discussed. Computa tions for both numerical schemes are made where possible and found to be in excellent agreement.