Thermal and Thermo Diffusion Effects on the Heat and Mass Transfer in a Viscous Fluid over an Exponential Stretching Surface in the Presence of Heat Absorption

Abstract

In this paper, analyses of the thermal and thermo diffusion effects on the Heat and Mass transfer in a Viscous Fluid over an exponential stretching Surface in the presence of heat absorption have been investigated. The two-dimensional boundary-layer equations governing the system is obtained in form of partial differential equations by Boussinesq approximation and transformed into a system of the ordinary differential equation via similarity variables. The resulting equations are then solved, using Homotopy Analysis Method and the effect of heat absorption, radiation parameter and other parameters encountered are presented graphically and discussed, while the effect of Local skin-friction, Nusselt and Sherwood numbers are presented numerically. The result shows among other results obtained that the effect of Lorentz force on velocity acts against the fluid flow, thereby resist the motion of the fluid of which its aftermath reduces the fluid velocity while its temperature improves due to the frictional heating generated across the boundary layer.