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Lattice Boltzmann simulation of double-diffusive natural convection of viscoplastic fluids in a porous cavity

Citation

Kefayati, G, Lattice Boltzmann simulation of double-diffusive natural convection of viscoplastic fluids in a porous cavity, Physics of Fluids, 31 Article 013105. ISSN 1070-6631 (2019) [Refereed Article]


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DOI: doi:10.1063/1.5074089

Abstract

In this paper, a two-dimensional double diffusive natural convection in a porous cavity filled with viscoplastic fluids is simulated. The dimensional and non-dimensional macroscopic equations are presented, employing the Papanastasiou model for viscoplastic fluids and the Darcy-Brinkman-Forchheimer model for porous media. An innovative approach based on a modification of the lattice Boltzmann method is explained and validated with previous studies. The effects of the pertinent dimensionless parameters are studied in different ranges. The extensive results of streamlines, isotherms, and isoconcentration contours, yielded/unyielded regions, and local and average Nusselt and Sherwood numbers are presented and discussed.

Item Details

Item Type:Refereed Article
Keywords:convection, heat and mass transfer, Bingham fluid, LBM
Research Division:Engineering
Research Group:Interdisciplinary Engineering
Research Field:Computational Fluid Dynamics
Objective Division:Energy
Objective Group:Other Energy
Objective Field:Energy not elsewhere classified
UTAS Author:Kefayati, G (Mr Gholamreza Kefayati)
ID Code:130261
Year Published:2019
Deposited By:Engineering
Deposited On:2019-01-18
Last Modified:2019-01-23
Downloads:0

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