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A new mesoscopic scale timestep adjustable non-dimensional lattice Boltzmann method for melting and solidification heat transfer
Su Y.1; Davidson J.H.2
2016
Source PublicationInternational Journal of Heat and Mass Transfer
ISSN179310
Volume92Pages:1106
Abstract

A mesoscopic scale timestep adjustable non-dimensional lattice Boltzmann method (NDLBM) for fluid flow and heat transfer with solid-liquid phase change is developed using a scaling analysis based on the mesoscopic length and velocity scales. The interface between fluid and solid is treated as a mixture domain with transient porosity distributions and thickness. Timesteps are adjusted by using a transient mesoscopic Mach number independent of mesh size to speed up the computation. The code is validated by comparison of transient Nusselt numbers, isotherms, streamlines, and porosity with prior studies of natural convection in a square enclosure with and without phase change material. A benchmark problem is proposed to obtain the same equilibrium state for both melting and solidification procedures. Full maps of the flow and heat transfer patterns for both melting and solidification are presented based on the key dimensionless governing parameters. The effects of Mach, Stefan (0.01-10), Rayleigh (103-108), and Prandtl (0.1-10) numbers are discussed. © 2015 Elsevier Ltd. All rights reserved.

KeywordMelting Non-dimensional Lattice Boltzmann Method Phase Change Solidification
DOI10.1016/j.ijheatmasstransfer.2015.09.076
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
WOS IDWOS:000364884500106
The Source to ArticleScopus
Scopus ID2-s2.0-84943743458
Fulltext Access
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Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Affiliation1.Department of Electromechanical Engineering, FST, University of Macau, Taipa, Macau
2.Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Su Y.,Davidson J.H.. A new mesoscopic scale timestep adjustable non-dimensional lattice Boltzmann method for melting and solidification heat transfer[J]. International Journal of Heat and Mass Transfer, 2016, 92, 1106.
APA Su Y.., & Davidson J.H. (2016). A new mesoscopic scale timestep adjustable non-dimensional lattice Boltzmann method for melting and solidification heat transfer. International Journal of Heat and Mass Transfer, 92, 1106.
MLA Su Y.,et al."A new mesoscopic scale timestep adjustable non-dimensional lattice Boltzmann method for melting and solidification heat transfer".International Journal of Heat and Mass Transfer 92(2016):1106.
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