Journal of
Mechanical Engineering Research

  • Abbreviation: J. Mech. Eng. Res.
  • Language: English
  • ISSN: 2141-2383
  • DOI: 10.5897/JMER
  • Start Year: 2009
  • Published Articles: 111

Full Length Research Paper

Heat transfer on magnetohydrodynamic (MHD) stagnation - point flow in nanofluid past a porous shrinking/stretching sheet with variable stream condition in the presence of blowing at the surface

Vibhu Vignesh Balachandar1*, Sulaiman Bin Hasan1 and R. Kandasamy
1Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia. 2Research Centre for Computational Fluid Dynamics, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia.
Email: [email protected]

  •  Received: 14 January 2015
  •  Accepted: 03 July 2015
  •  Published: 31 July 2015

Abstract

This paper deals with the steady two-dimensional magnetohydrodynamic (MHD) stagnation-point flow of nanofluid and heat transfer with thermal radiation past a stretching/shrinking sheet in the presence of injection are investigated numerically and simulated with Maple 18 software. Brownian motion and thermophoresis are included in employed model of nanofluid simultaneously. The system of nonlinear ordinary differential equations governing the flow is converted into a system of coupled higher order nonlinear ordinary differential equation by using similarity transformations. The results show that the flow field velocity, temperature and concentration profiles are influenced appreciably by the applied magnetic field, Brownian motion, heat radiation, porous parameter and thermophoresis particle deposition.

 

Key words: Magnetohydrodynamics, injection, stagnation point flow, heat transfer, Brownian motion, thermophoresis.