Výsledky vyhledávání - "Florent Renac"

Machine learning-augmented turbulence modeling for RANS simulations of massively separated flows

Autor: Olivier Marquet, Florent Renac, Julien Dandois, Morten Meyer, Pedro S. Volpiani, Emeric Martin, Lucas Franceschini, Denis Sipp

Publikováno v: Physical Review Fluids
Physical Review Fluids, American Physical Society, 2021, 6 (6), ⟨10.1103/PhysRevFluids.6.064607⟩

International audience; Most widely used Reynolds-averaged Navier-Stokes (RANS) models employ the Boussinesq approximation, which assumes a linear relationship between the turbulent Reynolds stresses and the mean-velocity gradient tensor. This assump

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79359548b274e161052105b44bf66dd4
https://hal.archives-ouvertes.fr/hal-03285669/file/DAAA21083.1626180378_postprint(1).pdf

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Entropy stable DGSEM for nonlinear hyperbolic systems in nonconservative form with application to two-phase flows

Autor: Florent Renac

Publikováno v: Journal of Computational Physics
Journal of Computational Physics, Elsevier, 2019, 382, pp.1-26. ⟨10.1016/j.jcp.2018.12.035⟩

International audience; In this work, we consider the discretization of nonlinear hyperbolic systems in nonconservative form with the high-order discontinuous Galerkin spectral element method (DGSEM) based on collocation of quadrature and interpolati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::245a501939b26c8f99c575723ae13c99
https://doi.org/10.1016/j.jcp.2018.12.035

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Aeroacoustic instability analysis of a Helmholtz resonator using a High-Order DG Solver based on URANS equations

Autor: Luigi Criscuolo, Hervé Denayer, Wim Desmet, Wim De Roeck, Florent Renac, Vincent Couaillier

Publikováno v: AIAA AVIATION 2020 FORUM
AIAA AVIATION 2020 FORUM, Jun 2020, VIRTUAL EVENT, United States. ⟨10.2514/6.2020-2570⟩

International audience; This paper presents an analysis of the aeroacoustic instabilities in a slit-type Helmholtz resonator subjected to a low Mach number grazing flow. This configuration can be susceptible to non-linear feedback phenomena due to th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b12415692597b8237bb73325a08294b2
https://hal.archives-ouvertes.fr/hal-03199233/file/DAAA21035.1618489627_preprint.pdf

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Entropy stable, robust and high-order DGSEM for the compressible multicomponent Euler equations

Autor: Florent Renac

This work concerns the numerical approximation of a multicomponent compressible Euler system for a fluid mixture in multiple space dimensions on unstructured meshes with a high-order discontinuous Galerkin spectral element method (DGSEM). We first de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9743e130f23ae4728e5c334d86028ed9
http://arxiv.org/abs/2001.05710

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Analysis of finite-volume discrete adjoint fields for two-dimensional compressible Euler flows

Autor: Clément Labbé, Jacques Peter, Florent Renac

Publikováno v: Journal of Computational Physics
Journal of Computational Physics, Elsevier, 2022, 449, pp.110811

This work deals with a number of questions relative to the discrete and continuous adjoint fields associated with the compressible Euler equations and classical aerodynamic functions. The consistency of the discrete adjoint equations with the corresp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6d5d36b08389b9ddb93cecc032aa9f1

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Traitement Adaptatif d'Interface pour le Couplage Aérothermique à l'aide d'un Méthode Galerkin Discontinue

Autor: Marc Errera, Florent Renac, Matthew Nguyen, Rocco Moretti, Vincent Couaillier, Odile Labbé

Publikováno v: International Journal of Thermal Sciences
International Journal of Thermal Sciences, Elsevier, 2020, 149, pp.106208. ⟨10.1016/j.ijthermalsci.2019.106208⟩

International audience; This paper presents the application of a discontinuous Galerkin method to conjugate heat transfer problems using a Dirichlet-Robin interface treatment. The use of optimal coefficients derived from a Godunov-Ryabenkii stability

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d264e66e0f9759b9f1cc5650752cc763
https://hal.archives-ouvertes.fr/hal-02502284/file/DAAA20037.1583491280_postprint.pdf

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Méthode d'adaptation de discrétisation et de modèle basée sur l'adjoint pour les systèmes hyperboliques avec relaxation

Autor: Dylan Dronnier, Florent Renac

Publikováno v: Multiscale Modeling and Simulation: A SIAM Interdisciplinary Journal
Multiscale Modeling and Simulation: A SIAM Interdisciplinary Journal, Society for Industrial and Applied Mathematics, 2019, 17 (2), pp.750-772. ⟨10.1137/18M120676X⟩

International audience; In this work, we use an adjoint-weighted residuals method for the derivation of an a posteriori model and discretization error estimators in the approximation of solutions to hyperbolic systems with stiff relaxation source ter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffc1e1fe4ffa5a34e7722e4bf7ac3e15
https://hal.archives-ouvertes.fr/hal-02179030/file/DAAA19093.1559551970.pdf

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An entropy stable high-order discontinuous Galerkin spectral element method for the Baer-Nunziato two-phase flow model

Autor: Florent Renac, Pratik Rai, Frédéric Coquel, Claude Marmignon

Publikováno v: Journal of Computational Physics. 431:110135

In this work we propose a high-order discretization of the Baer-Nunziato two-phase flow model (Baer and Nunziato, Int. J. Multiphase Flow, 12 (1986), pp. 861-889) with closures for interface velocity and pressure adapted to the treatment of discontin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afcf3d95be3d442cbf8d1343f865ddb2
https://doi.org/10.1016/j.jcp.2021.110135

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