An Official Journal of the American Society of Thermal and Fluids Engineers

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VISCOSITY AND FLUID SUCTION/INJECTION EFFECTS ON FREE CONVECTION FLOW FROM A VERTICAL PLATE IN A POROUS MEDIUM SATURATED WITH A PSEUDOPLASTIC FLUID

RÉSUMÉ

This paper investigates the effects of the fluid viscosity, the fluid suction/injection, and the power law fluid index on the free convection flow from a heated vertical plate in a porous medium saturated with a pseudoplastic fluid in the presence of internal heat generation. The problem is studied for power law fluid exponents between 0 and 1. The governing equations are transformed into an autonomous third-order nonlinear degenerate ordinary differential equation by means of similarity transformations. This equation is then solved numerically by the fifth-order Runge-Kutta scheme associated with the shooting iteration technique. Also, the effects of the governing physical parameters on the velocity and temperature, the local Nusselt number, and the local skin-friction profiles have been computed and studied with the help of graphs.