Abstract

Non-Newtonian fluid flow in porous media has variety of usefulness and applications in various fields of human

endeavours. This work is aimed at studying non-isothermal reacting MHD flow with a view of investigating the detailed

effects of various physical parameters of a stretching sheet through a saturated porous medium. In this work, variable thermal

conductivity on a radiative MHD boundary layer flow of an incompressible, viscous, and electrically fluid over a nonisothermal

stretching sheet through a saturated porous medium is considered. It is assumed that the fluid has chemical and

react satisfying Arrhenius law. The governing partial differential equations were transformed into ordinary differential

equations in terms of suitable similarity variable. Galerkin weighted residual method is employed to solve the resulting nonlinear

equation. The results showed the effects of variable thermal conductivity parameter, radiation parameter, Frank-

Kamenetskii parameter, magnetic parameter, Prandtl number and Schmidt number on the system of flow. The effects of various

physical parameters on the flow system were reported graphically. It is concluded from the analysis of the problem that thermal

radiation parameter, thermal conductivity parameter and the Prandtl number greatly affect the mass flow and the energy

transfer phenomena in the system.