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Magnetohydrodynamic time-dependent computational natural convection flow, heat and mass transfer in inclined semi-circular enclosures

M.M. Rahman (Department of Mathematical and Computing Sciences Group, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam) (Department of Mathematics, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh)
Hakan F. Öztop (Department of Mechanical Engineering, King Abdulaziz University, Jeddah, Saudi Arabia) (Department of Mechanical Engineering, Fırat University, Elazig, Turkey)
R. Saidur (Centre of Research Excellence in Renewable Energy, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia)
A.G. Naim (Department of Mathematical and Computing Sciences Group, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam)
Khaled S. Al-Salem (Department of Mechanical Engineering, King Saud University, Riyadh, Saudi Arabia)
Talaat A. Ibrahim (Vice Presidency for Projects, King Saud University, Riyadh, Saudi Arabia) (Department of Mechanical Power, Helwan University, Cairo, Egypt)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 7 November 2016

219

Abstract

Purpose

The purpose of this paper is to make a numerical analysis on unsteady analysis of natural convection heat and mass transfer to obtain flow field, temperature distribution, and concentration distribution.

Design/methodology/approach

A finite element method is applied to solve governing equations of natural convection in curvilinear-shaped system for different parameters as thermal Rayleigh numbers (103=RaT=106), inclination angle (0°=φ=60°) and Hartmann numbers (0=Ha=100).

Findings

Both magnetic field and inclination angle can be used as control parameter on heat and mass transfer. Flow strength decreases almost 100 percent between Ha=0 and Ha=100 on behalf of the higher values of thermal Rayleigh number.

Originality/value

The originality of this work is to application of magnetic field on time-dependent natural convection flow, heat and mass transfer for curvilinear geometry.

Keywords

Acknowledgements

Hakan F. Öztop and Khaled S. Al-Salem extend their appreciation to the International Scientific Partnership Program ISPP at King Saud University for funding this research work through ISPP#0030.

Citation

Rahman, M.M., Öztop, H.F., Saidur, R., Naim, A.G., Al-Salem, K.S. and Ibrahim, T.A. (2016), "Magnetohydrodynamic time-dependent computational natural convection flow, heat and mass transfer in inclined semi-circular enclosures", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 26 No. 8, pp. 2310-2330. https://doi.org/10.1108/HFF-06-2015-0252

Publisher

:

Emerald Group Publishing Limited

Copyright © 2016, Emerald Group Publishing Limited

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