Heat Transfer by Mixed Convection of Casson Nanofluid with Activation Energy

This paper aims to present a numerical simulation of convective heat transfer of magnetohydrodynamic Casson nanofluid flow on stretching surface. Energy equation includes nonlinear thermal radiation, heat source/sink, Joule and viscous dissipation whereas mass transfer equation incorporates Arrhenius activation energy. An accurate numerical solution of dimensionless system describing the flow is achieved by applying multi domain spectral relaxation method (MDSRM). Changes in flow, temperature and nanoparticle concentration profiles due to effects of various physical parameters, namely, activation energy parameter, radiation, heat source/sink controlled by space and temperature, Casson fluid parameter, Brownian motion, thermophoresis, Eckert number, Lewis number and magnetic parameter are explained by replicating the obtained numerical results in graphical form. A variation in the value of flow parameters induces a substantial impression on the boundary layers.