Magnetohydrodynamics (MHD) Casson Fluid Flow Over an Exponential Stretching Sheet

Abstract

This paper investigates MHD casson fluid flow over an exponentially stretching sheet. The governing partial differential equations were reduced to ordinary differential equations using similarity transformation. The reduced non-linear ordinary differential equations were solved analytically using iteration perturbation method and the results obtained were presented graphically. It was observed that casson, magnetic, unsteadiness, permeability and porosity parameters decrease the velocity profiles while ratio parameter, renold number, thermal and solutal grash of numbers enhance the velocity profiles. Also, magnetic parameter, radiative parameter, heat source, dufour number, chemical reaction and activation energy parameters enhance the temperature profile while prandtl number decreases the temperature profile. Soret number increase the concentration profile while chemical reaction parameter, activation energy parameter and schmidtl number decrease the concentration profile.