Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 70, Issue -, Pages 864-874Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2013.11.077
Keywords
Nonequilibrium extrapolation scheme; Lattice Boltzmann method; Finite volume method; Natural convection
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Funding
- U.S. National Science Foundation [CBET-1066917]
- Chinese National Natural Science Foundation [51129602, 51276118]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1066917] Funding Source: National Science Foundation
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A coupled lattice Boltzmann and finite volume method is proposed to solve natural convection in a differentially heated squared enclosure. The computational domain is divided into two subdomains and a message passing zone is between them. The velocity and temperature fields are respectively solved using D2Q9 and D2Q5 models in lattice Boltzmann method (LBM) while SIMPLE algorithm is applied to the finite volume method (FVM). The velocity and temperature information transfers are fulfilled by a non-equilibrium extrapolation scheme. Pure FVM, pure LBM, and the coupled method with two different geometric settings are applied to solve the natural convection with different Rayleigh numbers. The results obtained from the coupled method agreed with those from pure FVM and LBM very well. (C) 2013 Elsevier Ltd. All rights reserved.
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