Soret &amp; Dufour and Triple Stratification Effect on MHD Flow with Velocity Slip towards a Stretching Cylinder

Kandasamy Jagan,Sivanandam Sivasankaran

doi:10.3390/mca27020025

Abstract

The phenomenon of convective flow with heat and mass transfer has been studied extensively due to its applications in various fields. The effects of nonlinear thermal radiation (NLTR), slip, thermal-diffusion (Soret) and diffusion-thermo (Dufour) on magenoto-hydrodynamic (MHD) flow towards a stretching cylinder in the presence of triple stratification (TSF) are investigated in this paper. The governing equations are transformed into an ODE by suitable transformations. The homotopy analysis method (HAM) is used to solve the ODE. The revamping of fluid flow, and heat transfer due to the presence of the Soret and Dufour effect, concentration slip and concentration stratification are analyzed. The temperature and local Sherwood number increases as the Dufour number rises, whereas the local Nusselt number decreases. While elevating the Soret number, the Sherwood number diminishes, whereas the concentration profile rises. The thermal boundary layer thickness enhances when thermal radiation increases. The rate of solute transport reduces while the concentration slip increases.

Highlights

Stratification Effect on MHD FlowThe importance of nanofluids has been discussed before
The effect of thermal radiation on stagnationpoint nanofluid flow towards a stretchy sheet, 3D Jeffrey fluid flow, a nanofluid flow due to a contracting cylinder, finite element simulation of MHD convective nanofluid flow in porous media and MHD flow of a casson fluid induced by a semi-infinite stretchy surface with Cattaneo–Christov heat flux were investigated by Das et al [4], Raju et al [5], Abbas et al [6], Uddin et al [7] and Sandeep et al [8]
More recent related research was performed by Veera Krishna and Chamkha [9], Veera Krishna [10], Veera Krishna and Chamkha [11] and Animasaun et al [12]

Summary

Introduction

Stratification Effect on MHD FlowThe importance of nanofluids has been discussed before. The heat transfer in waterbased nanofluids (TiO2 –H2 O, Al2 O3 –H2 O and Cu–H2 O) and thermal radiation’s influence on nanofluid flow over a stretchy cylinder were studied by Rahman and Aziz [1], Rasekh et al [2] and Pandey and Kumar [3]. The effects of thermal stratification on flow and heat transfer and mixed convection flow due to a stretching cylinder were discussed by Chamkha et al [13] and Mukhopadhyay and Ishak [14]. Karthikeyan et al [15] and Eswaramoorthi et al [16] analyzed the Soret and Dufour effect on MHD mixed convection of a stagnation point flow over a vertical plate in a porous medium with chemical reaction and viscoelastic flow, over a stretchy sheet with convective boundaries

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