Títol:
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A coupled volume-of-fluid/level-set method for simulation of two-phase flows in unstructured meshes
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Autor/a:
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Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Jofre Cruanyes, Lluís; Rigola Serrano, Joaquim; Oliva Llena, Asensio
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Altres autors:
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Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
Abstract:
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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:
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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. |
Matèries:
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-Àrees temàtiques de la UPC::Enginyeria mecànica -Two-phase flow--Mathematical model -Finite element method -Level set methods -Unstructured meshes -Level-set method -Volume-of-fluid method -Finite-volume method -Two-phase flow -Elements finits, Mètode dels -Corbes de nivell, Mètodes de -Dinàmica de fluids computacional |
Drets:
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http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Tipus de document:
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Article - Versió presentada Article |
Publicat per:
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Elsevier
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Compartir:
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