A new numerical approach for MHD laminar boundary layer flow and heat transfer of nanofluids over a moving surface in the presence of thermal radiation

Stanford Shateyi,Jagdish Prakash

doi:10.1186/1687-2770-2014-2

Stanford Shateyi, Jagdish Prakash

Open Access

https://doi.org/10.1186/1687-2770-2014-2

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Abstract

Numerical analysis has been carried out on the problem of magnetohydrodynamic boundary layer flow of a nanofluid over a moving surface in the presence of thermal radiation. The governing partial differential equations were transformed into a system of ordinary differential equations using suitable similarity transformations. The resultant ordinary equations were then solved using the spectral relaxation method. Effects of the physical parameters on the velocity, temperature and concentration profiles as well as the local skin-friction coefficient and the heat and mass transfer rates are depicted graphically and/or in tabular form. MSC: 65PXX, 76-XX.

Highlights

Many engineering and industrial processes involve heat transfer by means of a flowing fluid in either laminar or turbulent regimes
Gbadeyan et al [ ] numerically studied boundary layer flow induced in a nanofluid due to a linearly stretching sheet in the presence of thermal radiation and induced magnetic field
The governing partial differential equations were transformed into a system of ordinary differential equations using suitable similarity transformations

Summary

Introduction

Many engineering and industrial processes involve heat transfer by means of a flowing fluid in either laminar or turbulent regimes. A decrease in thermal resistance of heat transfer in the fluids would significantly benefit many of these applications/processes. Choi [ ] introduced the technique of nanofluids by using a mixture of nanoparticles and the base fluids. Gbadeyan et al [ ] numerically studied boundary layer flow induced in a nanofluid due to a linearly stretching sheet in the presence of thermal radiation and induced magnetic field. Khan and Aziz [ ] studied natural convection flow of a nanofluid over a vertical plate with a uniform surface heat flux. Makinde and Aziz [ ] investigated boundary layer flow of a nanofluid past a stretching sheet with a convective boundary conditions. Khan et al [ ] studied the unsteady free convection boundary layer flow of a nanofluid along a stretching sheet with thermal radiation in the presence of a magnetic field

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