Effect of Heat and Mass Transfer on Casson Fluid Flow Between Two Co-Axial Tubes with Peristalsis

Abstract

The effects of both Hall currents and radiation on unsteady flow of an incompressible non-Newtonian fluid obeying Casson model through a porous medium have been discussed. The thermal-diffusion and diffusion thermo effects are taken into our consideration. The non-linear partial differential equations which govern this problem are simplified by making the assumption of long wave length and small Reynolds number. These equations are solved numerically by using explicit finite difference method. In addition, the axial velocity, temperature and concentration are illustrated graphically for various parameters of the problem such as magnetic parameter (Hartman number), the upper limit apparent viscosity coefficient, Hall parameter, the pressure gradient, Prandtl number, Eckert number, Darcy number, Dufour number, the radiation parameter, Schmidt number, Soret number, the chemical reaction parameter and heat source/sink parameter. Furthermore, it is noticed that the behavior of the pressure gradient and Hartman number parameters is to increase or decrease the temperature distributions and is quite reverse