1. A coupled volume-of-fluid/level-set method for simulation of two-phase flows on unstructured meshes.
- Author
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Balcázar, Néstor, Lehmkuhl, Oriol, Jofre, Lluís, Rigola, Joaquim, and Oliva, Assensi
- Subjects
- *
COMPUTER simulation , *TWO-phase flow , *SURFACE tension , *FINITE volume method , *LEVEL set methods , *DISCRETIZATION methods - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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