Heat Generating/Absorbing and Chemically Reacting Casson Fluid Flow over a Vertical Cone and Flat Plate Saturated with NonDarcy Porous Medium

A study has been carried out to analyze the influence of heat generation/absorption and cross diffusion effects on unsteady, chemically reacting Casson fluid flow over a vertical cone and flat plate saturated with non-Darcy porous medium. The numerical computation for the governing equations has been performed using implicit finite difference method of Crank-Nicolson type. The features of the fluid flow flow, heat and mass transfer characteristics are illustrated graphically and the physical aspects are discussed in detail to interpret the effect of various significant parameters of the problem. Numerical results for average skin-friction, Nusselt number and Sherwood number are tabulated for the pertaining physical parameters. Results indicate that Soret and Dufour effects have notable influence on heat and mass transfer characteristics of the fluid when the temperature and concentration gradients are high. It is also observed that the consideration of heat generation/absorption plays a vital role in predicting the heat transfer characteristics of moving fluids.

Casson fluid; non-Darcy porous medium; heat source/sink; chemical reaction; Soret and Dufour effects.