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Lattice Boltzmann simulation of MHD natural convection in a nanofluid-filled cavity with sinusoidal temperature distribution

Citation

Kefayati, GHR, Lattice Boltzmann simulation of MHD natural convection in a nanofluid-filled cavity with sinusoidal temperature distribution, Powder Technology, 243 pp. 171-183. ISSN 0032-5910 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 Elsevier B.V.

DOI: doi:10.1016/j.powtec.2013.03.047

Abstract

In this paper, the effect of a magnetic field on natural convection flow in a nanofluid-filled cavity with sinusoidal temperature distribution on one side wall has been analyzed with a new attitude to Lattice Boltzmann method (LBM). The cavity is filled with water and nanoparticles of Cu at the presence of a magnetic field. This study has been carried out for the pertinent parameters in the following ranges: Rayleigh number of the base fluid, Ra=103-105, the volumetric fraction of the nanoparticles between 0 and 6%, phase deviation (θ=0, π/4, π/2, 3π/4, and π) and Hartmann number varied from Ha=0 to 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. The magnetic field augments the effect of nanoparticle at Rayleigh number of (Ra=105) in contrast with Ra=103&104. At Ha=0, the greatest effects of nanoparticles are obtained at θ=3π/4, 0 & π/2 for Ra=103, 104and 105respectively. © 2013 Elsevier B.V.

Item Details

Item Type:Refereed Article
Keywords:Natural convection Sinusoidal temperature distribution Nanofluid Magnetic field Lattice Boltzmann method
Research Division:Engineering
Research Group:Interdisciplinary Engineering
Research Field:Heat and Mass Transfer Operations
Objective Division:Energy
Objective Group:Energy Transformation
Objective Field:Energy Transformation not elsewhere classified
UTAS Author:Kefayati, GHR (Dr Gholamreza Kefayati)
ID Code:127735
Year Published:2013
Web of Science® Times Cited:88
Deposited By:Engineering
Deposited On:2018-08-10
Last Modified:2018-09-11
Downloads:0

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