ENTROPY GENERATION ANALYSIS IN A VERTICAL POROUS CHANNEL WITH NAVIER SLIP IN THE PRESENCE OF VISCOUS DISSIPATION AND HEAT SOURCE

The intension of this paper is to investigate the effects of Navier slip and buoyancy force on the entropy in a vertical porous channel with suction/injection. This problem is solved analytically by perturbation technique. Closed form solutions are obtained for the fluid velocity and the temperature. The leads of slip parameter injection/suction, Reynolds number, Peclet number, heat source parameter and Brinkman number on the fluid velocity, temperature profiles, and rate of entropy generation are showed graphically and quantitatively discussed.