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Christian TENAUD
60
Documents
Présentation
**FIELDS OF EXPERTISE:**
· Developing efficient numerical methods: the objective is to increase the capabilities of the numerical simulations by developing more accurate, reliable, and efficient computational methods. The central subjects deal with the development of high order numerical schemes with high fidelity shock capturing features, sub-grid scale modeling in Large Eddy Simulation (LES), multiresolution procedures based on a posteriori error estimate for adaptive mesh refinement and the processing of unsteady boundary conditions. These methods have recently been coupled with a new resolution strategy based on time operator splitting in the context of very localized and stiff reaction fronts for combustion problem.
· Simulating fluid–structure interactions for transient dynamics problems, such as the impact of shock waves onto a structure, with possible fracturing causing the ultimate breakdown of the structure. We developed a new coupling algorithm between a compressible fluid flow and a moving body using an Embedded Boundary method that ensures the conservation of fluid mass and the balance of momentum and energy between fluid and solid.
· Flow analysis and reduction of the dynamics: we developed techniques for the generation of data on a subset of the domain that capture the relevant spatio-temporal features of the flow. These techniques were manly used to generate unsteady inlet boundary conditions and wall modeling techniques for zonal approach in LES. They were based on modal decompositions (*i.e.* POD, DMD) and derivation of low order dynamical systems.
· Manipulation and fluid flow control: a response surface-based optimizer was used to find the best set of Vortex Generator parameters to control the adverse pressure gradient at the rear-end of a car to achieve significant drag reduction.
**FIELDS OF EXPERTISE:**
· Developing efficient numerical methods: the objective is to increase the capabilities of the numerical simulations by developing more accurate, reliable, and efficient computational methods. The central subjects deal with the development of high order numerical schemes with high fidelity shock capturing features, sub-grid scale modeling in Large Eddy Simulation (LES), multiresolution procedures based on a posteriori error estimate for adaptive mesh refinement and the processing of unsteady boundary conditions. These methods have recently been coupled with a new resolution strategy based on time operator splitting in the context of very localized and stiff reaction fronts for combustion problem.
· Simulating fluid–structure interactions for transient dynamics problems, such as the impact of shock waves onto a structure, with possible fracturing causing the ultimate breakdown of the structure. We developed a new coupling algorithm between a compressible fluid flow and a moving body using an Embedded Boundary method that ensures the conservation of fluid mass and the balance of momentum and energy between fluid and solid.
· Flow analysis and reduction of the dynamics: we developed techniques for the generation of data on a subset of the domain that capture the relevant spatio-temporal features of the flow. These techniques were manly used to generate unsteady inlet boundary conditions and wall modeling techniques for zonal approach in LES. They were based on modal decompositions (*i.e.* POD, DMD) and derivation of low order dynamical systems.
· Manipulation and fluid flow control: a response surface-based optimizer was used to find the best set of Vortex Generator parameters to control the adverse pressure gradient at the rear-end of a car to achieve significant drag reduction.
Publications
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sexhy experimental results on pressure dynamics from head-on reflections of hydrogen flamesICHS 2023 - International Conference of Hydrogen Safety, Université du Québec Trois-Rivières, Sep 2023, Québec, Canada
Communication dans un congrès
hal-04322038v1
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Hydrogen/Air flame acceleration: advanced numerical modeling and criteria for detonationJournée Thématique Combustion Hydrogène, Laboratyoire PRISME, Orléans, Oct 2023, Orléans, France
Communication dans un congrès
hal-04322114v1
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A stable sharp interface low-mach scheme for two-phase dilatable flowsWCCM & ECCOMAS 2020 -14th World Congress in Computational Mechanics and ECCOMAS Congress 2020, IACM; ECCOMAS, Jan 2021, Paris (virtual event)*, France
Communication dans un congrès
hal-04380614v1
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Contribution of the breathing modes in the SWTBLI unsteadiness55th 3AF International Conference on Applied Aerodynamics, Apr 2021, Virtual Conference, France
Communication dans un congrès
hal-04444469v1
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Numerical tools to study hydrogen flame accelerationECCOMAS, Jan 2021, Paris, France
Communication dans un congrès
hal-03168817v1
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Schéma faible Mach à interface raide pour les écoulements diphasiques dilatables10ème Biennale Française des Mathématiques Appliquées et Industrielles, SMAI, Jun 2021, La Grande Motte, France
Communication dans un congrès
hal-04380112v1
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High-order extension of Roe’s solver for compressible multicomponent real gas flows73rd Annual Meeting of the APS Division of Fluid Dynamics APS DFD 2020, Nov 2020, Chicago (virtual), United States
Communication dans un congrès
hal-03168791v1
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Direct Numerical Simulation of the Shock Wave Boundary Layer Interaction (SWBLI)24e Congrès Français de Mécanique, Aug 2019, BREST, France
Communication dans un congrès
hal-02391833v1
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An accurate sharp interface method for two-phase compressible flows at low-Mach regimeInternational Conference on Multiphase Flow, May 2019, Rio de Janeiro, Brazil
Communication dans un congrès
hal-02187217v1
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Direct Numerical Simulation of the Shock Wave Boundary Layer Interaction (SWBLI)Direct and Large-Eddy Simulation, Jun 2019, Madrid, Spain
Communication dans un congrès
hal-02187214v1
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Solving three dimensional turbulent compressible flows using a high order One Step Monotony Preserving scheme.International Conference on Computational Fluid Dynamics, Jul 2018, Barcelone, Spain
Communication dans un congrès
hal-02187216v1
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DNS of shock boundary layer interaction: study of the shedding intermittency.7th European Conference on Computational Fluid Dynamics, Jun 2018, Glasgow, United Kingdom
Communication dans un congrès
hal-02187221v1
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Numerical modelling of an air-helium buoyant jet in a two vented enclosureECCM-ECFD 2018 - 7th European Conference on Computational Fluid Dynamics, ECCOMAS, Jun 2018, Glasgow, United Kingdom
Communication dans un congrès
hal-02187220v1
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Application de la multirésolution adaptative à la simulation numérique d'écoulements incompressiblesCongrès National d'Analyse Numérique, May 2018, Cap d'Agde, France
Communication dans un congrès
hal-02187222v1
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Direct Numerical Simulations of the Shock-Induced Separation of a Laminar Boundary LayerErcoftac Workshop on Direct and Large Eddy Simulation, Dimokratis G.E. GrigoriadisBernard J. GeurtsHans KuertenJochen FröhlichVincenzo Armenio, May 2018, Limassol, Cyprus
Communication dans un congrès
hal-01629385v1
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Large eddy simulations of an air-helium buoyant jet in a two vented enclosure: influence of the outlet boundary condition.Congrès Français de Mécanique, Jan 2017, Lille, France
Communication dans un congrès
hal-01629387v1
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Équations de Navier-Stokes incompressibles et multirésolution spatiale adaptative: sur la question des modes parasites en maillage collocalisé.Congrès de la SMAI, Jan 2017, Ronce-les-Bains, La Tremblade, France
Communication dans un congrès
hal-01629389v1
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Highly resolve large eddy simulations of a transitional air-helium buoyant jet in a two vented enclosure: validation against particle image velocimetry experiments.International Conference on Hydrogen Safety, Jan 2017, Hamburg, Germany
Communication dans un congrès
hal-01629390v1
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Shedding intermittency in a shockwave-laminar boundary layer interactionInternational Congress of Theoretical and Applied Mechanics, Aug 2016, Montréal, Canada
Communication dans un congrès
hal-01629392v1
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Direct Numerical Simulations of the Interaction between an Oblique Shock Wave and a Boundary Layer Developing Along a Flat Plate30th International Symposium on Shock Waves, Springer, Jul 2015, Tel Aviv, Israel
Communication dans un congrès
hal-01629393v1
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Simulation numérique du décollement et recollement turbulent autour d'une plaque plane épaisseCongrès Français de Mécanique, Jan 2011, Besançon, France
Communication dans un congrès
hal-01629401v1
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Global optimization with Gaussian process and application to drag reduction with vortex generatorsWorld Congress on Global Optimization in Engineering & Science, Jan 2011, Chania, Greece
Communication dans un congrès
hal-01629397v1
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Numerical simulation of the turbulent separation reattachment flow around a thick flat plate.EUROMECH European Turbulence Conference, IOP, Jan 2011, Warsaw, Poland
Communication dans un congrès
hal-01629400v1
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Global optimization of vortex generator parameters for drag reduction of ground vehiclesCFD & OPTIMIZATION, An ECCOMAS Thematic Conference, Jan 2011, Antalaya, Turkey
Communication dans un congrès
hal-01629396v1
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Modélisation par termes source de générateurs de vortex pour le contrôle d'écoulement : validations expérimentales et optimisationsCongrès Français de Mécanique, Jan 2011, Besançon, France
Communication dans un congrès
hal-01629399v1
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Numerical simulation of the turbulent detached flow around a thick flat plateInternational Conference on Computational Fluid Dynamics, Jan 2010, Saint Petersburg, Russia
Communication dans un congrès
hal-01629402v1
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An adaptive multiresolution technique for unsteady compressible flow simulationsSymposium on Applied Aerodynamics, Jan 2010, Marseille, France
Communication dans un congrès
hal-01629410v1
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A Conservative Coupling Method for Fluid-Structure Interaction in the Compressible CaseSixth International Conference on Computational Fluid Dynamics, ICCFD6, Jul 2010, St Petersburg, Russia. pp.473-478, ⟨10.1007/978-3-642-17884-9_59⟩
Communication dans un congrès
hal-00676721v1
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New Resolution Strategies for Multi-scale Reaction Waves: Optimal Time Operator Splitting and Space Adaptive MultiresolutionCLEI 2010 - XXXVI Latin American Conference on Informatics, Oct 2010, Asunción, Paraguay. Paper 6, 14 p
Communication dans un congrès
hal-00697727v1
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Numerical simulation of a two-phase flow in an oil filter by coupling a LES approach with a Lagrangian particle trackingEuropean Conference on Computational Fluid Dynamics, Jan 2010, Lisbon, Portugal
Communication dans un congrès
hal-01629407v1
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Direct numerical simulations of the shock-induced separation of a laminar boundary layerDirect and Large-Eddy Simulation X, 24, pp.327-332, 2017, 9783319632117. ⟨10.1007/978-3-319-63212-4_41⟩
Chapitre d'ouvrage
hal-01629644v1
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Time-space adaptive numerical methods for the simulation of combustion frontsAnnual Research Briefs of the Center for Turbulence Research, Center for Turbulence Research - Stanford University, pp.347-358, 2012
Chapitre d'ouvrage
hal-00653056v1
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Tutorials on Adaptive multiresolution for mesh refinement applied to fluid dynamics and reactive media problemsE. Cancés, V. Louvet and M. Massot. Summer school on multiresolution and adaptive mesh refinement methods, EDP Sciences, pp.Vol. 34 184-239, 2011, ESAIM: Proceedings, ⟨10.1051/proc/201134004⟩
Chapitre d'ouvrage
hal-00697705v1
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New Resolution Strategy for Multi-scale Reaction Waves using Time Operator Splitting and Space Adaptive Multiresolution: Application to Human Ischemic StrokeE. Cancès, V. Louvet, M. Massot. Summer school on multiresolution and adaptive mesh refinement methods, EDP Sciences, pp.Vol. 34 277-290, 2011, ESAIM: Proceedings, ⟨10.1051/proc/201134006⟩
Chapitre d'ouvrage
hal-00590812v1
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Numerical simulation of the flight of a badminton shuttlecock using the SPH method2020
Pré-publication, Document de travail
hal-02971917v1
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An Embedded Boundary method for the conservative coupling of a compressible flow and a rigid body2010
Pré-publication, Document de travail
hal-00550849v1
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