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MHD turbulent and laminar natural convection in a square cavity utilizing Lattice Boltzmann Method

Citation

Sajjadi, H and Kefayati, GHR, MHD turbulent and laminar natural convection in a square cavity utilizing Lattice Boltzmann Method, Heat Transfer - Asian Research, 45, (8) pp. 795-814. ISSN 1523-1496 (2017) [Refereed Article]

Copyright Statement

Copyright 2015 Wiley Periodicals, Inc.

DOI: doi:10.1002/htj.21191

Abstract

In this study, the lattice Boltzmann method was used to solve the turbulent and laminar natural convection in a square cavity. In this paper a fluid with Pr = 6.2 and different Rayleigh numbers (Ra = 103, 104,105 for laminar flow and Ra = 107, 108,109 for turbulent flow) in the presence of a magnetic field (Ha = 0, 25, 50, and 100) was investigated. (Results show that the magnetic field drops the heat transfer in the laminar flow as the heat transfer behaves erratically toward the presence of a magnetic field in a turbulent flow. Moreover, the effect of the magnetic field is marginal for a turbulent flow in contrast with a laminar flow.The greatest influence of the magnetic field is observed at Ra = 105 from Ha = 0 to 100 as the heat transfer decreases significantly.

Item Details

Item Type:Refereed Article
Keywords:natural convection, MHD, laminar turbulent flow, lattice Boltzmann method, square cavity
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:127662
Year Published:2017
Web of Science® Times Cited:24
Deposited By:Engineering
Deposited On:2018-08-08
Last Modified:2018-09-06
Downloads:0

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