Numerical study of natural convection in porous media (metals) using Lattice Boltzmann Method (LBM)

C. Y. Zhao; L. N. Dai; G. H. Tang; Z. G. Qu; Z. Y. Li

doi:10.1016/j.ijheatfluidflow.2010.06.001

Numerical study of natural convection in porous media (metals) using Lattice Boltzmann Method (LBM)

C. Y. Zhao
, L. N. Dai
, G. H. Tang
, Z. G. Qu
, Z. Y. Li

School of Energy and Power Engineering

Research output: Contribution to journal › Article › peer-review

81 Scopus citations

Abstract

A thermal lattice BGK model with doubled populations is proposed to simulate the two-dimensional natural convection flow in porous media (porous metals). The accuracy of this method is validated by the benchmark solutions. The detailed flow and heat transfer at the pore level are revealed. The effects of pore density (cell size) and porosity on the natural convection are examined. Also the effect of porous media configuration (shape) on natural convection is investigated. The results showed that the overall heat transfer will be enhanced by lowering the porosity and cell size. The square porous medium can have a higher heat transfer performance than spheres due to the strong flow mixing and more surface area.

Original language	English
Pages (from-to)	925-934
Number of pages	10
Journal	International Journal of Heat and Fluid Flow
Volume	31
Issue number	5
DOIs	https://doi.org/10.1016/j.ijheatfluidflow.2010.06.001
State	Published - Oct 2010

Keywords

Doubled populations BGK
Lattice Boltzmann thermal model
Natural convection
Pore density
Porosity
Porous media

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10.1016/j.ijheatfluidflow.2010.06.001

Cite this

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title = "Numerical study of natural convection in porous media (metals) using Lattice Boltzmann Method (LBM)",

abstract = "A thermal lattice BGK model with doubled populations is proposed to simulate the two-dimensional natural convection flow in porous media (porous metals). The accuracy of this method is validated by the benchmark solutions. The detailed flow and heat transfer at the pore level are revealed. The effects of pore density (cell size) and porosity on the natural convection are examined. Also the effect of porous media configuration (shape) on natural convection is investigated. The results showed that the overall heat transfer will be enhanced by lowering the porosity and cell size. The square porous medium can have a higher heat transfer performance than spheres due to the strong flow mixing and more surface area.",

keywords = "Doubled populations BGK, Lattice Boltzmann thermal model, Natural convection, Pore density, Porosity, Porous media",

author = "Zhao, \{C. Y.\} and Dai, \{L. N.\} and Tang, \{G. H.\} and Qu, \{Z. G.\} and Li, \{Z. Y.\}",

year = "2010",

month = oct,

doi = "10.1016/j.ijheatfluidflow.2010.06.001",

language = "英语",

volume = "31",

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journal = "International Journal of Heat and Fluid Flow",

issn = "0142-727X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Numerical study of natural convection in porous media (metals) using Lattice Boltzmann Method (LBM)

AU - Zhao, C. Y.

AU - Dai, L. N.

AU - Tang, G. H.

AU - Qu, Z. G.

AU - Li, Z. Y.

PY - 2010/10

Y1 - 2010/10

N2 - A thermal lattice BGK model with doubled populations is proposed to simulate the two-dimensional natural convection flow in porous media (porous metals). The accuracy of this method is validated by the benchmark solutions. The detailed flow and heat transfer at the pore level are revealed. The effects of pore density (cell size) and porosity on the natural convection are examined. Also the effect of porous media configuration (shape) on natural convection is investigated. The results showed that the overall heat transfer will be enhanced by lowering the porosity and cell size. The square porous medium can have a higher heat transfer performance than spheres due to the strong flow mixing and more surface area.

AB - A thermal lattice BGK model with doubled populations is proposed to simulate the two-dimensional natural convection flow in porous media (porous metals). The accuracy of this method is validated by the benchmark solutions. The detailed flow and heat transfer at the pore level are revealed. The effects of pore density (cell size) and porosity on the natural convection are examined. Also the effect of porous media configuration (shape) on natural convection is investigated. The results showed that the overall heat transfer will be enhanced by lowering the porosity and cell size. The square porous medium can have a higher heat transfer performance than spheres due to the strong flow mixing and more surface area.

KW - Doubled populations BGK

KW - Lattice Boltzmann thermal model

KW - Natural convection

KW - Pore density

KW - Porosity

KW - Porous media

UR - https://www.scopus.com/pages/publications/77956061211

U2 - 10.1016/j.ijheatfluidflow.2010.06.001

DO - 10.1016/j.ijheatfluidflow.2010.06.001

M3 - 文章

AN - SCOPUS:77956061211

SN - 0142-727X

VL - 31

SP - 925

EP - 934

JO - International Journal of Heat and Fluid Flow

JF - International Journal of Heat and Fluid Flow

IS - 5

ER -

Numerical study of natural convection in porous media (metals) using Lattice Boltzmann Method (LBM)

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Keywords

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