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Tetrahedral Remeshing in the Context of Large-Scale Numerical Simulation and High Performance Computing

Guillaume Balarac 1 Francesca Basile 2, 3 Pierre Bénard 4 Felipe Bordeu 5 Jean-Baptiste Chapelier 6 Luca Cirrottola 7, 8, 9 Guillaume Caumon 10 Charles Dapogny 11 Pascal Frey 12 Algiane Froehly 9, 13 Giovanni Ghigliotti 1 Romain Laraufie 2 Ghislain Lartigue 4 Capucine Legentil 10 Renaud Mercier 5 Vincent Moureau 4 Chiara Nardoni 14 Savinien Pertant 1 Mustapha Zakari 10
1 LEGI - Laboratoire des Écoulements Géophysiques et Industriels [Grenoble]
2 Airbus Operation S.A.S.
3 DAAA, ONERA, Université Paris-Saclay [Châtillon]
4 CORIA - Complexe de recherche interprofessionnel en aérothermochimie
5 Safran Tech
6 ONERA
7 CARDAMOM - Certified Adaptive discRete moDels for robust simulAtions of CoMplex flOws with Moving fronts
IMB - Institut de Mathématiques de Bordeaux, Inria Bordeaux - Sud-Ouest
8 IMB - Institut de Mathématiques de Bordeaux
9 Inria Bordeaux - Sud-Ouest
10 GeoRessources
11 EDP - Equations aux Dérivées Partielles
LJK - Laboratoire Jean Kuntzmann
12 SU - Sorbonne Université
13 DGD-I - Direction générale déléguée à l'innovation
14 IRT SystemX - IRT SystemX
Abstract : The purpose of this article is to discuss several modern aspects of remeshing, which is the task of modifying an ill-shaped tetrahedral mesh with bad size elements so that it features an appropriate density of high-quality elements. After a brief sketch of classical stakes about meshes and local mesh operations, we notably expose (i) how the local size of the elements of a mesh can be adapted to a user-defined prescription (guided, e.g., by an error estimate attached to a numerical simulation), (ii) how a mesh can be deformed to efficiently track the motion of the underlying domain, (iii) how to construct a mesh of an implicitlydefined domain, and (iv) how remeshing procedures can be conducted in a parallel fashion when large-scale applications are targeted. These ideas are illustrated with several applications involving high-performance computing. In particular, we show how mesh adaptation and parallel remeshing strategies make it possible to achieve a high accuracy in large-scale simulations of complex flows, and how the aforementioned methods for meshing implicitly defined surfaces allow to represent faithfully intricate geophysical interfaces, and to account for the dramatic evolutions of shapes featured by shape optimization processes.
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Preprints, Working Papers, ...
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https://hal.sorbonne-universite.fr/hal-03344779
Contributor : Pascal Frey Connect in order to contact the contributor
Submitted on : Wednesday, September 15, 2021 - 11:20:23 AM
Last modification on : Saturday, April 2, 2022 - 3:39:36 AM
Long-term archiving on: : Thursday, December 16, 2021 - 6:39:16 PM

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  • HAL Id : hal-03344779, version 1

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INSMI | TDS-MACS | SORBONNE-UNIVERSITE | SU-TI | IRT-SYSTEMX | UGA | LJK | UNIV-LORRAINE | INRIA2 | OTELO-UL | CORIA | INSA-ROUEN | UNIROUEN | INSA-GROUPE | GEORESSOURCES-UL | INSU | COMUE-NORMANDIE | INRIA | LEGI | CNRS | LJK_MAD | LJK_MAD_EDP | ONERA | GS-ENGINEERING | UNIV-PARIS-SACLAY

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Guillaume Balarac, Francesca Basile, Pierre Bénard, Felipe Bordeu, Jean-Baptiste Chapelier, et al.. Tetrahedral Remeshing in the Context of Large-Scale Numerical Simulation and High Performance Computing. 2021. ⟨hal-03344779⟩

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