Thermophoresis and Brownian motion effects on chemically reacting Casson fluid flow past a nonlinear stretching sheet

Abstract

In this study, we analyzed the effects of heat source/sink on boundary layer flow of a MHD Casson fluid past a nonlinear stretching sheet with thermophoresis and Brownian motion. The governing partial differential equations are transformed in to set of ordinary differential equations by using similarity transformation and solved numerically using bvp5c Matlab package. The effects of chemical reaction parameter, magnetic field parameter, heat source/sink, Brownian motion parameter and thermophoresis parameter on velocity, temperature and concentration profiles are discussed and presented through graphs. Results indicate that an increase in heat source/sink parameter enhances the heat transfer rate.

Keywords: Casson fluid, Radiation, MHD, Heat source/sink, Thermophoresis and Brownian motion.