首页|An Improved Coupled Level Set and Continuous Moment-of-Fluid Method for Simulating Multiphase Flows with Phase Change

An Improved Coupled Level Set and Continuous Moment-of-Fluid Method for Simulating Multiphase Flows with Phase Change

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An improved algorithm for computing multiphase flows is presented in which the multi-material Moment-of-Fluid(MOF)algorithm for multiphase flows,initially described by Li et al.(2015),is enhanced addressing existing MOF difficulties in computing solutions to problems in which surface tension forces are crucial for understanding salient flow mech-anisms.The Continuous MOF(CMOF)method is motivated in this article.The CMOF reconstruction method inherently removes the"checkerboard instability"that persists when using the MOF method on surface tension driven multiphase(multimaterial)flows.The CMOF reconstruction algorithm is accelerated by coupling the CMOF method to the level set method and coupling the CMOF method to a decision tree machine learning(ML)algo-rithm.Multiphase flow examples are shown in the two-dimensional(2D),three-dimen-sional(3D)axisymmetric"RZ",and 3D coordinate systems.Examples include two mate-rial and three material multiphase flows:bubble formation,the impingement of a liquid jet on a gas bubble in a cryogenic fuel tank,freezing,and liquid lens dynamics.

Moment-of-Fluid(MOF)Surface tensionTwo phase flowPhase changeDeforming boundaries with change(s)in topologyTwo-dimensional(2D)Three-dimensional(3D)axisymmetric3D

Zhouteng Ye、Cody Estebe、Yang Liu、Mehdi Vahab、Zeyu Huang、Mark Sussman、Alireza Moradikazerouni、Kourosh Shoele、Yongsheng Lian、Mitsuhiro Ohta、M.Yousuff Hussaini

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ZJUI Institute,Zhejiang University,Haining 314400,Zhejiang,China

Department of Mathematics,Florida State University,Tallahassee,USA

Department of Mechanical Engineering,Florida State University,Tallahassee,USA

Mechanical and Aerospace Engineering Mathworks,Natick,MA,USA

School of Aerospace Engineering,Tsinghua University,Beijing 100084,China

Department of Mechanical Engineering,University of Louisville,Louisville,USA

Department of Mechanical Science,Tokushima University,Tokushima,Japan

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National Aeronautics and Space Administration

number 80NSSC20K0352

2024

应用数学与计算数学学报
上海大学

应用数学与计算数学学报

影响因子:0.165
ISSN:1006-6330
年,卷(期):2024.6(2)