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Magnetohydrodynamic Natural Convection in a Rotating Enclosure

Published online by Cambridge University Press:  27 January 2016

H. Saleh*
Affiliation:
Solar Energy Research Institute, University Kebangsaan Malaysia, 43600 Bangi Selangor, Malaysia
I. Hashim
Affiliation:
Pusat Pemodelan & Analisis Data, School of Mathematical Sciences, University Kebangsaan Malaysia, 43600 Bangi Selangor, Malaysia Research Institute, Center for Modeling & Computer Simulation (RI/CM&CS), King Fahd University of Petroleum & Minerals, Dhahran-31261, Saudi Arabia
*
*Corresponding author. Email: [email protected] (H. Saleh), [email protected] (I. Hashim)
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Abstract

Magnetohydrodynamic natural convection heat transfer in a rotating, differentially heated enclosure is studied numerically in this article. The governing equations are in velocity, pressure and temperature formulation and solved using the staggered grid arrangement together with MAC method. The governing parameters considered are the Hartmann number, 0≤Ha≤70, the inclination angle of the magnetic field, 0°≤θ 90°, the Taylor number, 8.9 x 104Ta≤1.1 x 106 and the centrifugal force is smaller than the Coriolis force and the both forces were kept below the buoyancy force. It is found that a sufficiently large Lorentz force neutralizes the effect of buoyancy, inertial and Coriolis forces. Horizontal or vertical direction of the magnetic field was most effective in reducing the global heat transfer.

Type
Research Article
Copyright
Copyright © Global-Science Press 2016 

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