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Anisotropic Delaunay mesh adaptation for unsteady simulations

Cécile Dobrzynski 1, 2 Pascal Frey 3 
2 SCALAPPLIX - Algorithms and high performance computing for grand challenge applications
Université Bordeaux Segalen - Bordeaux 2, Université Sciences et Technologies - Bordeaux 1, Inria Bordeaux - Sud-Ouest, École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB), CNRS - Centre National de la Recherche Scientifique : UMR5800
Abstract : Anisotropic mesh adaptation is a key feature in many numerical simu- lations to capture the physical behavior of a complex phenomenon at a reasonable computational cost. It is a challenging problem, especially when dealing with time dependent and interface capturing or tracking problems. In this paper, we describe a local mesh adaptation method based on an extension of the Delaunay kernel for creat- ing anisotropic mesh elements with respect to adequate metric tensors. In addition, we show that this approach can be successfully applied to deal with fluid-structure inter- action problems where parts of the domain boundaries undergo large displacements. The accuracy and efficiency of the method is assessed on various numerical examples of complex three-dimensional simulations.
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https://hal.archives-ouvertes.fr/hal-00353786
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Submitted on : Friday, January 16, 2009 - 2:31:46 PM
Last modification on : Saturday, June 25, 2022 - 10:31:26 AM

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  • HAL Id : hal-00353786, version 1

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Cécile Dobrzynski, Pascal Frey. Anisotropic Delaunay mesh adaptation for unsteady simulations. 17th international Meshing Roundtable, 2008, United States. pp.177-194. ⟨hal-00353786⟩

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