Unsteady boundary layer flow of a Casson fluid past a wedge with wall slip velocity

In this paper, an analysis is presented to understand the effect of non-Newtonian rheology, velocity slip at boundaries, thermal radiation, heat absorption/generation, and first-order chemical reactions on unsteady MHD mixed convective heat and mass transfer of a Casson fluid past a wedge in the presence of a transverse magnetic field with variable electrical conductivity. The partial differential equations governing the flow with the pertinent boundary conditions were solved numerically. The computational results are presented graphically for different values of the non-dimensional parameters of the analysis. The results for particular cases were compared with the published results available in the literature and were found to be in excellent agreement. The present analysis indicates that the Casson parameter for representing non-Newtonian rheology has an increasing influence on velocity and temperature. The point of flow separation was found for negative values of the wedge angle parameter. The radiation parameter enhances the rate of heat transfer. The mass transfer rate is reduced with chemical reaction parameter and Schmidt’s number.