Unsteady MHD Convective Heat and Mass Transfer of a Casson Fluid Past a Semi-infinite Vertical Permeable Moving Plate with Heat Source/Sink

Abstract

In this paper, the effects of heat and mass transfer on an unsteady MHD flow of a Casson fluid past a semi-infinite moving vertical plate with heat source/sink are investigated. The governing equations are transformed into a system of linear partial differential equations using appropriate non-dimensional variables. The resulting equations are solved analytically using perturbation technique. Further the expressions for velocity, temperature and concentration are obtained with the help of boundary conditions. Finally the effects of various parameters on velocity, temperature and concentration are shown in graphs.  It is found that velocity increases as Casson parameter increases and temperature increases as heat absorption coefficient decreases.

Keywords: Casson parameter, MHD, Heat source/sink, Heat and mass transfer.