Thermal Radiation and Heat Absorption Effect on Heat and Mass Transfer over an Exponential Stretching Porous Surface with Viscous Dissipation

The study of natural convective boundary layer flow of heat and mass transfer of incompressible viscous dissipative fluid over a porous stretching vertical surface in the presence of thermal radiation with heat absorption in a porous medium is considered. A similarity variables is used to reduce the governing system of PDEs to a set of nonlinear ordinary differential equations which are solved numerically using shooting technique coupled with fourth order Runge-Kutta method. The numerical computations are presented in graphically and tabular for various fluid parameters controlling the fluid flow of heat and mass transfer. It is observed that an increase in radiation produced a rise in the velocity, temperature and concentration profiles. Skin friction and Nusselt number increased with an increase in the radiation.