Title:
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An efficient edge-based level set finite element method for free surface flow problems
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Author:
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Rossi, Riccardo; Larese De Tetto, Antonia; Dadvand, Pooyan; Oñate Ibáñez de Navarra, Eugenio
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria; Universitat Politècnica de Catalunya. (MC)2 - Grup de Mecànica Computacional en Medis Continus |
Abstract:
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We present an efficient technique for the solution of free surface flow problems using level set and a parallel edge-based finite elementmethod. An unstructured semi-explicit solution scheme is proposed. A custom data structure, obtained by blending node-based and edge-based approaches is presented so to allow a good parallel
performance. In addition to standard velocity extrapolation (for the convection of the level set function), an explicit extrapolation of the pressure field is performed in order to impose both the pressure boundary condition and the volume conservation. The latter is also improved with a modification of the divergence free constrain. The method is shown to allow an efficient solution of both simple benchmark cases and complex industrial examples. |
Subject(s):
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-Àrees temàtiques de la UPC::Física::Física de fluids::Flux de fluids -Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits -Open-channel flow -Finite element method -edge-based formulation -free surface flows -CFD -level set -fractional step -OpenMP parallel -Hidrodinàmica -- Elements finits -Canals -- Mètodes numèrics |
Rights:
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Document type:
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Article - Published version Article |
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