(219g) Soret and Dufour Effects On Double Diffusive Convection In a Square Cavity Totally Filled with Porous Material Using the Multigrid Method

This work studies the Soret and Dufour effects on the flow due to natural double diffusion convection in a square cavity totally filled with a  porous medium saturated with Newtonian fluids with constant wall temperature and concentration. The effects of the Dufour parameter, Soret parameter, Lewis number, and buoyancy ratio on the heat and mass transfer characteristics  have been studied. The local Nusselt number tends to decrease as the Dufour parameter is increased. The effect of the Dufour parameter on the local Nusselt number becomes more significant as the Lewis number is increased. Moreover, an increase in the Soret number leads to a decrease in the local Sherwood number and an increase in the local Nusselt number.