A coupled volume-of-fluid/level-set method for simulation of two-phase flows on unstructured meshes

被引:92
作者
Balcazar, Nestor [1 ]
Lehmkuhl, Oriol [1 ,2 ]
Jofre, Lluis [1 ]
Rigola, Joaquim [1 ]
Oliva, Assensi [1 ]
机构
[1] Univ Politecn Cataluna, BarcelonaTech UPC, ETSEIAT, Heat & Mass Transfer Technol Ctr CTTC, Barcelona 08222, Spain
[2] Termo Fluids SL, Barcelona 08222, Spain
关键词
Unstructured meshes; Level-set method; Volume-of-fluid method; Finite-volume method; Two-phase flow; FRONT-TRACKING METHOD; BUOYANCY-DRIVEN MOTION; MULTI-FLUID FLOWS; LEVEL-SET; NUMERICAL-SIMULATION; VISCOUS-LIQUIDS; SHEAR-FLOW; BUBBLES; COMPUTATIONS; VELOCITIES;
D O I
10.1016/j.compfluid.2015.10.005
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
This paper presents a methodology for simulation of two-phase flows with surface tension in the framework of unstructured meshes, which combines volume-of-fluid with level-set methods. While the volume-of-fluid transport relies on a robust and accurate polyhedral library for interface advection, surface tension force is calculated by using a level-set function reconstructed by means of a geometrical procedure. Moreover the solution of the fluid flow equations is performed through the fractional step method, using a finite-volume discretization on a collocated grid arrangement. The numerical method is validated against two- and three-dimensional test cases well established in the literature. Conservation properties of this method are shown to be excellent, while geometrical accuracy remains satisfactory even for the most complex flows. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:12 / 29
页数:18
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