The Effects of Principle Axis of Permeability Tensor on Heat and Mass Transfer in Anisotropic Porous Medium

Free convection heat and mass transfer in a 2D porous cavity are studied by finite difference method. Natural convection is investigated by both heat and mass transfer inside the anisotropic porous cavity using the Darcy law. The flow is considered to be two-dimensional, Newtonian and unsteady. The porous medium is assumed anisotropic both hydrodynamically and thermally. The effects of principle axis of the permeability tensor, i.e. θ, on heat and mass transfer are studied. Moreover, different permeability values, i.e. 0.1, 1 and 10, are considered in the simulation. Streamlines, isotherms and the averaged Nusselt number are also reported. The governing equations are solved based on the finite difference discretization.