Natural Convection of Water-Cu Nanofluid in a Porous Cavity with Two Pairs of Heat Source-Sink and Magnetic Effect

A numerical study of flow behaviour in a cavity due the natural convection and applied magnetic field is carried out. The heat transfer from the heated boundary and the flow patterns are derived by using the governing equations which are non-dimensionalized and solvedusing the FDM (Finite Difference Method). The flow patterns are visualized by streamlines and isotherms for different values of non dimensional parameters
, , , . Resuction in streamlinevelocityoccurs for increase in ,  and with decrease in . The heat transfer from the source/sink from the bottom of the cavity is described using the average Nusselt number.