Thermo-Double Diffusion Radiation Effects on the flow of Casson fluid in the Presence of Porous Media and Magnetic field over a stretching Sheet

The present study aims at investigating numerically the doubly stratified Casson nanofluid past a stretching sheet with convective heating boundary conditions. The nanofluid incorporates the effects of Brownian motion and thermophoresis. Governing equations are incorporated with thermo-diffusion, thermal radiation effects, heat absorption, viscous dissipation, the chemical reaction in the presence of porous media and magnetic field. Suitable similarity transformations are used to convert the nonlinear PDEs into a similar set of non-linear ODEs. Numerical solutions of the reduced governing equations are obtained through the BVP4C code of MATLAB. The effects of various parameters on the flow field namely, velocity, temperature, and spices concentration are depicted in graphs. Further, the skin friction, heat and mass effects against various parameters of the model are calculated and presented in the table. It is worthwhile to mention here that the present study has many engineering and industrial applications such as controlling cooling effects, MHD propulsion, paper production, material processing, etc.