MHD flow and heat transfer over a stretching porous sheet subject to power law heat flux in the presence of chemical reaction and viscous dissipation

A boundary layer steady MHD flow has been carried out to study the heat and mass transfer effect of a viscous incompressible fluid over a stretching porous sheet in the presence of heat source and viscous dissipation. The equations of motion, heat transfer and species concentration are reduced to non-linear ordinary differential equations and the exact solutions are obtained in the form of confluent hypergeometric function (Kummer’s function). The effect of the various parameters entering into the problem Prandtl number Pr, Eckert number Ec, Schmidt number Sc, magnetic parameter M2, permeability parameter Kp, injection parameter λ, stretching parameter S on the velocity distribution, temperature distribution , species concentration are discussed.