Towards an automated toolset for mesh adapted Navier–Stokes simulation of hypersonic vehicles

Mathieu Lugrin; Baptiste Isnard; Clément Benazet; Bruno Maugars; Cédric Content

doi:10.5802/crmeca.344

Article de recherche

Towards an automated toolset for mesh adapted Navier–Stokes simulation of hypersonic vehicles
[Vers un ensemble d’outils automatisés pour la simulation Navier–Stokes avec adaptation de maillage des véhicules hypersoniques]

Mathieu Lugrin ¹ ; Baptiste Isnard ¹ ; Clément Benazet ² ; Bruno Maugars ² ; Cédric Content ²

¹ DAAA, ONERA, Institut Polytechnique de Paris, 92190 Meudon, France
² DAAA, ONERA, Institut Polytechnique de Paris, 92320 Châtillon, France

Comptes Rendus. Mécanique, Volume 353 (2025), pp. 1451-1475

Abstract (VO)
Résumé

A fully automated CAD-to-post toolset for Navier–Stokes and Reynolds Averaged Navier–Stokes (RANS) simulations of high speed vehicles flow is presented. The toolset combines the vertex-centered SoNICS solver with anisotropic mesh adaptation based on the REFINE toolbox, eliminating manual meshing and enabling efficient, parallelized simulations from CAD input to converged solutions. The tool is validated on open cases representative of the complexity of the flow encountered around high-speed vehicles including reentry and airbreathing cruise vehicles. This includes complex three-dimensional forebody laminar simulations and axisymmetric triconic cases. For the internal aerodynamics part, given the lack of proper validation references, a direct numerical simulation of the internal conduit of a generic dual mode ramjet air intake is conducted and compared to legacy RANS simulation and mesh-adapted RANS simulation. A demonstration on a full scramjet-powered cruise vehicle then highlights the toolset’s scalability and adaptability to industrial applications. The automated workflow reduces setup time and human error, making it a valuable asset for hypersonic vehicle design and optimization.

Un ensemble d’outils entièrement automatisé pour les simulations Navier–Stokes et Reynolds Averaged Navier–Stokes (RANS) des écoulements autour des véhicules à grande vitesse est présenté. Cet ensemble d’outils combine le solveur SoNICS avec l’adaptation de maillage anisotrope basée sur la boîte à outils REFINE, éliminant ainsi le maillage manuel et permettant des simulations parallélisées efficaces, depuis l’entrée CAO jusqu’aux solutions convergées. L’outil est validé sur des cas ouverts représentatifs de la complexité de l’écoulement rencontré autour des véhicules à grande vitesse, y compris les véhicules de rentrée et les véhicules de croisière à propulsion aérobie. Cela inclut des simulations laminaires tridimensionnelles complexes de l’avant du fuselage et des cas triconiques axisymétriques. Pour la partie aérodynamique interne, compte tenu du manque de références de validation appropriées, une simulation numérique directe du conduit interne d’une prise d’air générique pour statoréacteur est réalisée et comparée à une simulation RANS classique et à une simulation RANS avec adaptation de maillage. Une démonstration sur un véhicule de croisière propulsé par statoréacteur souligne ensuite l’évolutivité et l’adaptabilité de l’ensemble d’outils aux applications industrielles. Le flux de travail automatisé réduit le temps de configuration et les erreurs humaines, ce qui en fait un atout précieux pour la conception et l’optimisation des véhicules hypersoniques.

Reçu le : 2025-11-18
Accepté le : 2025-12-04
Publié le : 2025-12-15

DOI : 10.5802/crmeca.344

Keywords: Hypersonic, RANS, mesh adaptation
Mots-clés : Hypersonique, RANS, adaptation de maillage

Affiliations des auteurs :

Mathieu Lugrin ¹ ; Baptiste Isnard ¹ ; Clément Benazet ² ; Bruno Maugars ² ; Cédric Content ²

¹ DAAA, ONERA, Institut Polytechnique de Paris, 92190 Meudon, France
² DAAA, ONERA, Institut Polytechnique de Paris, 92320 Châtillon, France

Licence :

CC-BY 4.0

Droits d'auteur : Les auteurs conservent leurs droits

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     author = {Mathieu Lugrin and Baptiste Isnard and Cl\'ement Benazet and Bruno Maugars and C\'edric Content},
     title = {Towards an automated toolset for mesh adapted {Navier{\textendash}Stokes} simulation of hypersonic vehicles},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {1451--1475},
     year = {2025},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {353},
     doi = {10.5802/crmeca.344},
     language = {en},
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Mathieu Lugrin; Baptiste Isnard; Clément Benazet; Bruno Maugars; Cédric Content. Towards an automated toolset for mesh adapted Navier–Stokes simulation of hypersonic vehicles. Comptes Rendus. Mécanique, Volume 353 (2025), pp. 1451-1475. doi: 10.5802/crmeca.344

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