Simulation of two-phase flows of a droplet impacting on a liquid film with an improved lattice Boltzmann model

Based on the lattice Boltzmann method（LBM）,an improved pseudo-potential model,combined with a method of adding force term,is used to simulate the two-phase flows caused by a liquid droplet impacting on a liquid film.In this model,the different phases are treated as one fluid,and the interfaces betwe...

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Bibliographic Details
Published inJournal of Shanghai University Vol. 15; no. 6; pp. 506 - 509
Main Author 张崇明 王小永 郭加宏
Format Journal Article
LanguageEnglish
Published Heidelberg Shanghai University Press 01.12.2011
Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P. R. China
Subjects
Classical Mechanics
Computational fluid dynamics
Computer simulation
Density
Droplets
Engineering
Environment
Fluid flow
Fluids
Life Sciences
Liquid films
Liquids
Materials Science
Mathematical and Computational Engineering
Mechatronics
格子Boltzmann方法
格子Boltzmann模型
模型验证
模拟
流动液体
液滴
液膜流动
物理现象
76A20
droplet
interparticle potential
phase transition
76D17
pseudo-potential model
lattice Boltzmann method (LBM)
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Summary:Based on the lattice Boltzmann method（LBM）,an improved pseudo-potential model,combined with a method of adding force term,is used to simulate the two-phase flows caused by a liquid droplet impacting on a liquid film.In this model,the different phases are treated as one fluid,and the interfaces between the vapor and liquid phases can be obtained by density value of the fluid.This variant of the LBM allows one to obtain the densities of vapor and liquid with high accuracy.The model is validated by an example of phase separation.The early stage of the impact of droplet on liquid film is simulated,and the results are qualitatively consistent with physical phenomena.
Bibliography:lattice Boltzmann method（LBM）; pseudo-potential model; interparticle potential; phase transition; droplet
ZHANG Chong-ming,WANG Xiao-yong,GUO Jia-hong Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,P.R.China
Based on the lattice Boltzmann method（LBM）,an improved pseudo-potential model,combined with a method of adding force term,is used to simulate the two-phase flows caused by a liquid droplet impacting on a liquid film.In this model,the different phases are treated as one fluid,and the interfaces between the vapor and liquid phases can be obtained by density value of the fluid.This variant of the LBM allows one to obtain the densities of vapor and liquid with high accuracy.The model is validated by an example of phase separation.The early stage of the impact of droplet on liquid film is simulated,and the results are qualitatively consistent with physical phenomena.
31-1735/N
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1007-6417
1863-236X
DOI:10.1007/s11741-011-0776-1