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Effect of a magnetic field on natural convection in an open cavity subjugated to water/alumina nanofluid using Lattice Boltzmann method
Citation
Kefayati, GHR, Effect of a magnetic field on natural convection in an open cavity subjugated to water/alumina nanofluid using Lattice Boltzmann method, International Communications in Heat and Mass Transfer, 40 pp. 67-77. ISSN 0735-1933 (2013) [Refereed Article]
Copyright Statement
© 2012 Elsevier Ltd. All rights reserved.
DOI: doi:10.1016/j.icheatmasstransfer.2012.10.024
Abstract
In this paper, the effect of a magnetic field on natural convection in an open enclosure which subjugated to water/alumina nanofluid using Lattice Boltzmann method has been investigated. The cavity is filled with water and nanoparticles of Al2O3at the presence of a magnetic field. Calculations were performed for Rayleigh numbers (Ra=104-106), volume fractions of nanoparticles (φ=0,0.02,0.04 and 0.06) and Hartmann number (0≤Ha≤90) with interval 30 while the magnetic field is considered horizontally. Results show that the heat transfer decreases by the increment of Hartmann number for various Rayleigh numbers and volume fractions. The magnetic field augments the effect of nanoparticles at Rayleigh number of Ra=106regularly. Just as the most effect of nanoparticles for Ra=104is observed at Ha=30, so the most influence of nanoparticles occurs at Ha=60 for Ra=105. © 2012 Elsevier Ltd.
Item Details
Item Type: | Refereed Article |
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Keywords: | natural convection, open enclosure, Lattice Boltzmann method, nanofluid, magnetic field |
Research Division: | Engineering |
Research Group: | Fluid mechanics and thermal engineering |
Research Field: | Experimental methods in fluid flow, heat and mass transfer |
Objective Division: | Energy |
Objective Group: | Energy transformation |
Objective Field: | Energy transformation not elsewhere classified |
UTAS Author: | Kefayati, GHR (Dr Gholamreza Kefayati) |
ID Code: | 127737 |
Year Published: | 2013 |
Web of Science® Times Cited: | 146 |
Deposited By: | Engineering |
Deposited On: | 2018-08-10 |
Last Modified: | 2018-09-06 |
Downloads: | 0 |
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