Heat and mass transfer in radiative MHD Carreau fluid with cross diffusion

Numerical investigation is carried out for analyzing the heat and mass transfer in Carreau fluid flow over a permeable stretching sheet with convective slip conditions in the presence of applied magnetic field, nonlinear thermal radiation, cross diffusion and suction/injection effects. The transformed nonlinear ordinary differential equations with the help of similarity variables are solved numerically using Runge-Kutta and Newton's methods. We presented dual solutions for suction and injection cases. The effect of non-dimensional governing parameters on velocity, temperature and concentration profiles are discussed and presented through graphs. Numerical values of friction factor, local Nusselt and Sherwood numbers are tabulated. We found an excellent agreement of the present results by comparing with the published results. It is found that Soret and Dufour parameters regulate the heat and mass transfer rate. Nonlinear thermal radiation effectively enhances the thermal boundary layer thickness. (C) 2016 Ain Shams University.