Casson Fluid Flow in a Vertical Channel Incorporating Suction, Heat Sink and Dufour Mechanisms

Abstract

In this paper, we have investigated Casson fluid Flow in a vertical channel incorporating suction, heat sink and Dufour mechanisms. The governing equations are modeled using Casson model by considering Dufour and heat sink. The equations are non-dimensionalised by defining suitable dimensionalising parameters. The resulting equations are nonlinear and coupled. These are tackled by employing regular perturbation technique. Velocity, temperature and concentration are plotted for various physical parameters which affects the flow and are analysed graphically. The method is observed to give good agreement. It is seen that increase in Dufour and heat sink parameters lead to rise in both thermal and momentum boundary layers.