inria-00354509, version 1
P1-conservative solution interpolation on unstructured triangular meshes
N° RR-6804 (2009)
- a – INRIA
- 1 :
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INRIA France - 2 :
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CNRS : UMR7005 – INRIA – Université de Strasbourg – Université de Lorraine France - 3 :
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http://www-irma.u-strasbg.fr/
CNRS : UMR7501 – Université de Strasbourg 7 rue René-Descartes, 67084 Strasbourg Cedex, France France
Références bibliographiques
- Type de publication : Rapports
- Domaine : Mathématiques/Analyse numérique
- Titre : P1-conservative solution interpolation on unstructured triangular meshes
- Résumé : This document presents an interpolation operator on unstructured triangular meshes that verifies the properties of mass conservation, P1-exactness (order 2) and maximum principle. This operator is important for the resolution of the conservation laws in CFD by means of mesh adaptation methods as the conservation properties is not verified throughout the computation. Indeed, the mass preservation can be crucial for the simulation accuracy. The conservation properties is achieved by local mesh intersection and quadrature formulae. Derivatives reconstruction are used to obtain an order 2 method. Algorithmically, our goal is to design a method which is robust and efficient. The robustness is mandatory to apply the operator to highly anisotropic meshes. The efficiency will permit the extension of the method to dimension three. Several numerical examples are presented to illustrate the efficiency of the approach.
- Langue du document : Anglais
- Type de rapport : Rapport de recherche
- Nombre de pages : 48
- Date de publication : 2009
- Mots-clés : Solution interpolation – conservative interpolation – localization algorithm – unstructured mesh – mesh adaptation – conservation laws
- Référence interne : RR-6804
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RR-6804.pdf |
- inria-00354509, version 1
- http://hal.inria.fr/inria-00354509
- oai:hal.inria.fr:inria-00354509
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- Soumis le : Mardi 20 Janvier 2009, 09:55:45
- Dernière modification le : Mercredi 3 Mars 2010, 17:45:21








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