Magnetohydrodynamic radiative Casson fluid flow over a semi-infinite vertical plate: An analytical approach

Abstract

In this study, we analyzed the heat transfer nature of the magnetohydrodynamic Casson fluid flow over a semi-infinite porous vertical plate in the presence of thermal radiation and heat source/sink with buoyancy effect. The governing partial differential equations are transformed as non-dimensional equations using suitable transformation and resulting equations are solved using Perturbation technique. The effect of non-dimensional parameters namely thermal radiation, heat source/sink, Grashof number, porosity parameter and magnetic field parameter on the flow and heat transfer is analyzed for both Casson and Newtonian fluid cases. Also discussed the friction factor and local Nusselt number for both cases. It is found that momentum and thermal boundary layers of Casson and Newtonian fluids are non-uniform.

Keywords: Casson fluid, MHD, thermal radiation, heat source/sink, buoyancy effect.