Couple Stresses and Thermophoresis Influences on Free Convective Heat and Mass Transfer of Viscoelastic Fluid with Hall and Ion-Slip Effects.

Gamil Shalaby

doi:10.24297/jap.v17i.8657

Abstract

An analysis is presented to investigate the Hall and Ion-slip effects on non-Newtonian couple stress fluid flow between vertical channel in the presence of thermophoresis phenomena. The considered fluid obeys to the viscoelastic second-grade model. The problem is modulated mathematically to describe continuity, momentum, temperature, and concentration equations. The influences of physical parameters of dimensionless equations of velocity components () and (), temperature () and concentration () have been shown in some of figuthe res, as well as skin friction (), Nusselt number() and Sherwood number() have been computed. It is found that the velocity decreases with increasing in Hall parameter and Ion slip parameters.

Highlights

During recent years the study of convection heat and mass transfer in non-Newtonian fluids has received much attention, and this is because the traditional Newtonian fluids cannot precisely describe the characteristics of the real fluids
Chaudhary and Jain [6] have elucidated the effect of Hall current on MHD mixed convection flow of a viscoelastic fluid past an infinite vertical porous plate with mass transfer and radiation
Kumar and Chand [7] have investigated the effect of slip conditions and Hall current on unsteady MHD flow of a viscoelastic fluid past an infinite porous plate embedded in a porous medium

Summary

Introduction

During recent years the study of convection heat and mass transfer in non-Newtonian fluids has received much attention, and this is because the traditional Newtonian fluids cannot precisely describe the characteristics of the real fluids. An analysis is presented to investigate the Hall and Ion-slip effects on non-Newtonian couple stress fluid flow between vertical channel in the presence of thermophoresis phenomena.

Results

Conclusion