Influence of Variable Permeability on Heat and Mass Transfer due to Free Convection Flow over a Vertical Flat Plate in Porous Medium Considering Soret and Dufour Effects

The influence of variable permeablity on heat and mass transfer due to free convection flow over a vertical flat plate embedded in a fluid saturated porous medium is studied in presence of heat source/sink, non-linear density temperature variation, non- linear density concentration variation, soret and dufour effect .The concentration profile is drawn for various parameters in both uniform and non-uniform permeability cases. Numerical results of rate of mass transfer for different parameters such as suction/blowing, wall temperature exponent, heat source / sink, non-linear density temperature variation as well as non- linear density concentration variation for both uniform and non-uniform permeability cases are presented in tabular form