Effects of activation energy on reactive MHD flows with joule heating

Abstract

This paper explores the effects of Arrhenius activation energy on a chemically reactive MHD flow through a porous surface while considering the joule heating effect of the two-dimensional free convective flow. The study incorporates the impact of the activation energy on the flow, the effect of the chemical reaction rate parameter on the velocity and temperature profiles as well as the joule heating parameter on the flow. The concentration of the species in the fluid will be investigated and the results discussed. The resulting non-linear partial differential equations are solved using the finite difference methods and results displayed graphically to show the effects of the resulting dimensionless parameters. It is found that the presence of the chemical reaction rate parameter on the flow decreases the concentration of the fluid while the activation energy shows the converse results.