MHD Flow and Heat Transfer of Casson Nanofluid through a Porous Media over a Stretching Sheet

Abstract

The present chapter aims at investigating the magnetohydrodynamic (MHD) boundary layer flow and heat transfer of a non-Newtonian fluid over a stretching surface through a porous medium. Casson fluid model is utilized to describe the non-Newtonian fluid behavior. Two types of nanofluids, that is, Ag-water and Cuwater, are studied. The governing partial differential equations are transformed into a system of coupled non-linear ordinary differential equations using similarity transformations and then solved numerically using the Keller box method. Numerical results are obtained for the velocity, temperature, skin friction coefficient and Nusselt number. The influence of the various governing parameters viz. Casson parameter, magnetic parameter, porosity parameter and Prandtl number on the flow and heat transfer characteristics of the nanofluids is plotted graphically and discussed in detail. The chapter shows that with an increase in the Casson parameter, the velocity field decreases whereas the temperature profile increases. A decrease in the momentum boundary layer thickness and an increase in the thermal boundary layer thickness are noted with an increase in the magnetic parameter.

Natural Convection Flow of Radiative Casson Fluid Past a Stretching Cylindrical Surface in a Porous Medium with Applied Magnetic Field and Joule Heating

“…Afikuzzaman et al [25] examined numerical solution of unsteady incompressible Casson fluid flow in the presence of heat transfer. Siddiqui and Shankar [26] showed the impact of heat transfer on magnetohydrodynamic flow of Casson fluid in a porous medium.…”

Analysis of volume fraction of Casson Nanofluid flow over a flat moving plate with thermal radiation and nonuniform heat source/sink

“…A time-dependent set of linear equations was established to describe the fluid flow system, including momentum, energy, and concentration. The purpose of Aisha et al 2 is to understand the heat transfer and mhd boundary layer flow of non-Newtonian fluids across stretched surfaces in porous media. The behavior of non-Newtonian liquids is described by his Casson liquid model.…”