Validation of the S-CLSVOF method with the density-scaled balanced continuum surface force model in multiphase systems coupled with thermocapillary flows
Validation of the S-CLSVOF method with the density-scaled balanced continuum surface force model in multiphase systems coupled with thermocapillary flows
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DOI：
10.1002/fld.4267
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发表时间：
2017-01-30
影响因子：
1.8
通讯作者：
Dost, Sadik
中科院分区：
文献类型：
--
作者：
Yamamoto, Takuya;Okano, Yasunori;Dost, Sadik
三种数值方法，即流体体积法（VOF）、简单耦合流体体积法和水平集法（S-CLSVOF）和具有密度缩放平衡连续表面力（CSF）模型的S-CLSVOF已被纳入OpenFOAM源代码，并在三种情况下验证了其准确性：（i）等温静态情况，（ii）等温动态情况，和（iii）具有包括动态界面变形的热毛细流动的非等温动态情况。结果表明，S-CLSVOF方法在计算条件较温和的情况下能给出较准确的结果，而采用密度尺度平衡CSF模型的S-CLSVOF方法在界面变形较大、密度和粘度比较大的情况下能给出较准确的结果。这些表明，这些高精度的方法将是适当的，以获得准确的预测多相流系统与热毛细流动。版权所有（c）2016约翰威利父子有限公司
Three numerical methods, namely, volume of fluid (VOF), simple coupled volume of fluid with level set (S-CLSVOF), and S-CLSVOF with the density-scaled balanced continuum surface force (CSF) model, have been incorporated into OpenFOAM source code and were validated for their accuracy for three cases: (i) an isothermal static case, (ii) isothermal dynamic cases, and (iii) non-isothermal dynamic cases with thermocapillary flow including dynamic interface deformation. Results have shown that the S-CLSVOF method gives accurate results in the test cases with mild computation conditions, and the S-CLSVOF technique with the density-scaled balanced CSF model leads to accurate results in the cases of large interface deformations and large density and viscosity ratios. These show that these high accuracy methods would be appropriate to obtain accurate predictions in multiphase flow systems with thermocapillary flows. Copyright (c) 2016 John Wiley & Sons, Ltd.