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A lattice Boltzmann model for multiphase flows with moving contact line and variable density
Huang, Jizu1,2; Wang, Xiao-Ping3
2018-01-15
Source PublicationJOURNAL OF COMPUTATIONAL PHYSICS
ISSN0021-9991
Volume353Pages:26-45
AbstractIn this paper, we develop an efficient lattice Boltzmann model for the two-phase moving contact line problem with variable density. The Navier-Stokes and Cahn-Hilliard equations are recovered from the lattice Boltzmann model proposed by Fakhari and Rahimian [5]. To improve numerical stability, we present a semi-implicit lattice Boltzmann method together with a mixed finite difference scheme. In order to describe the behavior of the contact line motion on the boundary, we incorporate the generalized Navier boundary condition [25] by the nonequilibrium extrapolation method [8]. The proposed method is easy to implement and retains the advantage of the standard lattice Boltzmann method. Numerical tests are carried out to verify the proposed method. Our numerical results show that the present approach is able to model two-phase flows with variable density and moving contact line. (C) 2017 Elsevier Inc. All rights reserved.
KeywordLattice Boltzmann model Variable density Moving contact line Slip boundary condition
DOI10.1016/j.jcp.2017.10.002
Language英语
Funding ProjectHong Kong RGC-GRF[16302715] ; Hong Kong RGC-GRF[16324416] ; Hong Kong RGC-CRF[C6004-14G] ; NSFC[11501554]
WOS Research AreaComputer Science ; Physics
WOS SubjectComputer Science, Interdisciplinary Applications ; Physics, Mathematical
WOS IDWOS:000418229800002
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/29223
Collection计算数学与科学工程计算研究所
Affiliation1.Chinese Acad Sci, Acad Math & Syst Sci, LSEC, Inst Computat Math & Sci Engn Comp, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
3.Hong Kong Univ Sci & Technol, Dept Math, Kowloon, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Huang, Jizu,Wang, Xiao-Ping. A lattice Boltzmann model for multiphase flows with moving contact line and variable density[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2018,353:26-45.
APA Huang, Jizu,&Wang, Xiao-Ping.(2018).A lattice Boltzmann model for multiphase flows with moving contact line and variable density.JOURNAL OF COMPUTATIONAL PHYSICS,353,26-45.
MLA Huang, Jizu,et al."A lattice Boltzmann model for multiphase flows with moving contact line and variable density".JOURNAL OF COMPUTATIONAL PHYSICS 353(2018):26-45.
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