[Méthodes modulaires et interdisciplinaires pour les simulations aéroélastiques (MIMAS)]
In the context of high aspect ratio wings or blades, aeroelasticity is becoming increasingly crucial for predicting the safety, efficiency, and performance of modern aircraft. This paper describes the development of MIMAS, a computational framework for simulating complex nonlinear aeroelastic phenomena from incompressible to highly transonic flows, in steady or unsteady configurations. On the one hand, MIMAS features advanced mesh deformation and transfer algorithms that have been renewed and optimised to enable faster computations compared to previous implementations within ONERA legacy codes. On the other hand, it offers ready-to-use coupling scenarios to support loose to strong fluid-structure interactions. This environment provides a high-level end-user abstraction layer that allows to couple a wide range of aerodynamic and non-linear structural simulation codes. In addition, the data structure is sufficiently generic to handle both structured and unstructured discretizations. In this paper, we first demonstrate the ability of MIMAS to reproduce existing representative computations such as harmonic forced motion, static coupling and dynamic coupling, without overhead induced by the modular implementation. Second, we present new capabilities of MIMAS, in particular the improved algorithms for mesh deformation and data transfer and its ability to leverage modern HPC architectures.
Dans le contexte des ailes ou des pales à fort allongement, l’aéroélasticité devient de plus en plus cruciale pour prédire la sécurité, l’efficacité et les performances des avions modernes. Cet article décrit le développement de MIMAS, un environnement de calcul permettant de simuler des phénomènes aéroélastiques non linéaires complexes, allant des écoulements incompressibles aux écoulements hautement transsoniques, dans des configurations stables ou instables. D’une part, MIMAS dispose d’algorithmes avancés de déformation et de transfert de maillage qui ont été renouvelés et optimisés pour permettre des calculs plus rapides par rapport aux implémentations précédentes dans les codes hérités de l’ONERA. D’autre part, il offre des scénarios de couplage prêts à l’emploi pour prendre en charge des interactions fluide-structure faibles à fortes. Cet environnement fournit une couche d’abstraction de haut niveau pour l’utilisateur final qui permet de coupler un large éventail de codes de simulation aérodynamique avec des codes structuraux non linéaires. De plus, la structure des données est suffisamment générique pour gérer à la fois les discrétisations structurées et non structurées. Dans cet article, nous démontrons tout d’abord la capacité de MIMAS à reproduire des calculs représentatifs existants tels que le mouvement forcé harmonique, le couplage statique et le couplage dynamique, sans surcharge de temps de calcul induite par l’implémentation modulaire. Ensuite, nous présentons les nouvelles capacités de MIMAS, en particulier les algorithmes améliorés pour la déformation des maillages et le transfert de données, ainsi que sa capacité à tirer parti des architectures HPC modernes.
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Mots-clés : Aéroélasticité, simulations numériques, couplage, déformation du maillage
Antoine Riols-Fonclare 1 ; Yann Vallat 1 ; Pierre-Emmanuel Des Boscs 1 ; Antoine Placzek 1 ; Alain Dugeai 1 ; Cédric Liauzun 1 ; Christophe Blondeau 1 ; Charly Mollet 1 ; Mikel Balmaseda 2
CC-BY 4.0
@article{CRMECA_2025__353_G1_1315_0,
author = {Antoine Riols-Fonclare and Yann Vallat and Pierre-Emmanuel Des Boscs and Antoine Placzek and Alain Dugeai and C\'edric Liauzun and Christophe Blondeau and Charly Mollet and Mikel Balmaseda},
title = {Modular and {Interdisciplinary} {Methods} for {Aeroelastic} {Simulations} {(MIMAS)}},
journal = {Comptes Rendus. M\'ecanique},
pages = {1315--1349},
year = {2025},
publisher = {Acad\'emie des sciences, Paris},
volume = {353},
doi = {10.5802/crmeca.337},
language = {en},
}
TY - JOUR AU - Antoine Riols-Fonclare AU - Yann Vallat AU - Pierre-Emmanuel Des Boscs AU - Antoine Placzek AU - Alain Dugeai AU - Cédric Liauzun AU - Christophe Blondeau AU - Charly Mollet AU - Mikel Balmaseda TI - Modular and Interdisciplinary Methods for Aeroelastic Simulations (MIMAS) JO - Comptes Rendus. Mécanique PY - 2025 SP - 1315 EP - 1349 VL - 353 PB - Académie des sciences, Paris DO - 10.5802/crmeca.337 LA - en ID - CRMECA_2025__353_G1_1315_0 ER -
%0 Journal Article %A Antoine Riols-Fonclare %A Yann Vallat %A Pierre-Emmanuel Des Boscs %A Antoine Placzek %A Alain Dugeai %A Cédric Liauzun %A Christophe Blondeau %A Charly Mollet %A Mikel Balmaseda %T Modular and Interdisciplinary Methods for Aeroelastic Simulations (MIMAS) %J Comptes Rendus. Mécanique %D 2025 %P 1315-1349 %V 353 %I Académie des sciences, Paris %R 10.5802/crmeca.337 %G en %F CRMECA_2025__353_G1_1315_0
Antoine Riols-Fonclare; Yann Vallat; Pierre-Emmanuel Des Boscs; Antoine Placzek; Alain Dugeai; Cédric Liauzun; Christophe Blondeau; Charly Mollet; Mikel Balmaseda. Modular and Interdisciplinary Methods for Aeroelastic Simulations (MIMAS). Comptes Rendus. Mécanique, Volume 353 (2025), pp. 1315-1349. doi: 10.5802/crmeca.337
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