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Université de Provence - Aix-Marseille I Hyper Articles en Ligne |
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Université de Provence - Aix-Marseille I Hyper Articles en Ligne |
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| HAL : hal-00405273, version 1 |
| Fiche détaillée |  Récupérer au format |
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| A global procedure for flow and heat transfer simulation with complex obstacles on curvilinear grids |
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| Arthur Sarthou 1Stéphane Vincent 1 |
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| (01/02/2008) |
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| A global methodology for simulating multiphase flows and heat transfers interacting with complex objects or interfaces is presented. Elliptic equations or Navier-Stokes equations are resolved on a fixed structured curvilinear grid and the solid objects are initially represented by triangular surface elements. Several difficulties arise as soon as these two non-conforming grids have to interact in the same physical problem, and accurate methods are presented for each issues: Lagrangian/Eulerian grid projection, immersed boundary of interface problems, and finally visualization. Hence, a new fast point-in-solid method for curvilinear grid is presented to project Lagrangian shapes on Eulerian grid. A new immersed boundary and interface method is presented, the Algebraic Immersed Interface method. Several validation and application problems are presented to demonstrate the interest and accuracy of the method. |
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| 1 : | Transferts, écoulements, fluides, énergétique (TREFLE) |
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CNRS : UMR8508 – Université Sciences et Technologies - Bordeaux I – École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB) – Arts et Métiers ParisTech |
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| 2 : | Laboratoire d'Analyse, Topologie, Probabilités (LATP) |
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CNRS : UMR6632 – Université de Provence - Aix-Marseille I – Université Paul Cézanne - Aix-Marseille III |
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| Domaine | : | Informatique/Modélisation et simulation Mathématiques/Analyse numérique Physique/Physique/Physique Numérique |
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| Multiphase flow – immersed boundary – computer graphics – scientific visualisation – curvilinear grid – Lagrangian/Eulerian projection – heat transfert |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00405273, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00405273 | |
| oai:hal.archives-ouvertes.fr:hal-00405273 | |
| Contributeur : Arthur Sarthou | |
| Soumis le : Lundi 20 Juillet 2009, 10:58:13 | |
| Dernière modification le : Lundi 20 Juillet 2009, 11:06:48 | |
