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Magnetic field effect on heat and mass transfer of mixed convection of shear-thinning fluids in a lid-driven enclosure with non-uniform boundary conditions

Citation

Kefayati, GHR, Magnetic field effect on heat and mass transfer of mixed convection of shear-thinning fluids in a lid-driven enclosure with non-uniform boundary conditions, Journal of the Taiwan Institute of Chemical Engineers, 51 pp. 20-33. ISSN 1876-1070 (2015) [Refereed Article]

Copyright Statement

Copyright 2015 Taiwan Institute of Chemical Engineers

Official URL: https://www.sciencedirect.com/science/article/pii/...

DOI: doi:10.1016/j.jtice.2015.01.006

Abstract

© 2015 Taiwan Institute of Chemical Engineers. In this paper, the effect of a magnetic field on mixed convection of shear-thinning fluids in a square lid-driven cavity with sinusoidal boundary conditions under the combined buoyancy effects of thermal and mass diffusion has been analyzed by finite difference lattice Boltzmann method (FDLBM). This study has been conducted for the certain pertinent parameters of Richardson number (Ri = 0.00062-1), Hartmann number (Ha = 0-100), Lewis number (Le = 5 and 50), power-law index (n = 0.2-1) as the buoyancy ratio is studied from N = -10 to 10. Results indicate that the augmentation of Richardson number causes heat and mass transfer to drop. The enhancement of Hartmann number declines heat and mass transfer for multifarious buoyancy ratios and power-law indexes steadily at Ri = 0.00062 and 0.01. The fall of the power law index declines heat and mass transfer at Ri = 0.00062 and 0.01 for various Hartmann numbers and buoyancy ratios. The increase in power-law index and Hartmann number influence heat and mass transfer differently at Ri = 1 for various buoyancy ratios and Lewis numbers. The growth of Lewis number enhances mass transfer for the studied Hartmann numbers and buoyancy ratios.

Item Details

Item Type:Refereed Article
Keywords:Mixed convection, Magnetic field, FDLBM, Mass transfer, Shear-thinning fluids
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:127683
Year Published:2015
Web of Science® Times Cited:29
Deposited By:Engineering
Deposited On:2018-08-08
Last Modified:2018-09-20
Downloads:0

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