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Featured researches published by Pierre Lubin.


Proceedings of the 29th International Conference | 2005

THREE-DIMENSIONAL LARGE EDDY SIMULATION OF VORTICES INDUCED BY PLUNGING BREAKING WAVES

Pierre Lubin; Stéphane Vincent; Jean-Paul Caltagirone; Stéphane Abadie

The scope of this paper is to show the results obtained for simulating 3D plunging breaking waves by solving the Navier-Stokes equations in air and water, coupled with a subgrid scale turbulence model. The breaking processes including overturning, splash-up and breaking induced vortex-like motion beneath the surface are presented and discussed. Plunging breaking waves have been simulated in periodic domains and compared with previous published works. We found a very good agreement with the general description we could find in the literature concerning the breaking processes.


Proceedings of the 30th International Conference | 2007

LARGE EDDY SIMULATION OF REGULAR WAVES BREAKING OVER A SLOPING BEACH

Pierre Lubin; Hubert Branger; Olivier Kimmoun

The scope of this paper is to show the results obtained for the Large Eddy Simulations (LES) of three-dimensional regular waves shoaling and breaking over a sloping beach, by solving the Navier-Stokes equations in air and water. The interface tracking is achieved by a Lax-Wendroff TVD scheme, which is able to handle with interface reconnections. The breaking processes including shoaling, overturning, splash-up and air entrainment, will be presented and discussed.


ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference | 2003

Local Mesh Refinement and Penalty Methods Dedicated to the Direct Numerical Simulation of Incompressible Multiphase Flows

Stéphane Vincent; Jean-Paul Caltagirone; Pierre Lubin; Nirina Randrianarivelo

Recent advances in numerical methods for the direct numerical simulation (DNS) of multiphase flows are presented. The mathematical formulation is based on an eulerian discretisation of the navier-stokes equations on fixed staggered curvilinear grids where the media are located thanks to volume of fluid functions. An adaptative and local mesh refinement method (AMR) is proposed to allow multi-space scale solutions in three dimensions and a tensorial penalty (or fictious domain) approach is detailed for the numerical modelling of incompressibility, velocity/pressure coupling and liquid/solid interactions in multi fluid flows. The article is focussed on three-dimensional applications of the direct numerical simulation. The DNS tool is applied to the mould filling under unstable viscous jet conditions, the stoke’s flow induced by a solid particle in a tube and the turbulent wave breaking in deep water. These flows are chosen to highlight the abilities of the numerical model for characterising unsteady incompressible multiphase flows.Copyright


Journées Nationales Génie Côtier - Génie Civil | 2014

Simulation numérique du phénomène de franchissement d'ouvrage par une houle irrégulière

Cyril Mokrani; Stéphane Abadie; Pierre Lubin

Résumé : Dans le cadre du projet EMACOP (Énergie MArine CÔtière et Portuaire, http://www.emacop.fr/), une étude numérique est réalisée afin de tester la validité dun modèle Navier-Stokes/VOF pour la simulation du processus de franchissement intervenant sur des systèmes de récupération d’énergie marine. Dans larticle, nous présentons la méthode numérique utilisée pour générer une houle irrégulière, puis nous étudions différents cas de franchissement dun obstacle incliné par une houle irrégulière. Les volumes de franchissement simulés sont comparés aux mesures expérimentales disponibles dans la littérature. Mots-clés : Simulation Navier-Stokes, Débits de franchissement, Energie de la houle, Houle irrégulière.


Coastal Engineering | 2006

Three-dimensional Large Eddy Simulation of air entrainment under plunging breaking waves

Pierre Lubin; Stéphane Vincent; Stéphane Abadie; Jean-Paul Caltagirone


Computers & Fluids | 2004

An adaptative augmented Lagrangian method for three-dimensional multimaterial flows

Stéphane Vincent; Jean-Paul Caltagirone; Pierre Lubin; Tseheno Nirina Randrianarivelo


Comptes Rendus Mecanique | 2005

On the Navier-Stokes equations simulation of the head-on collision between two surface solitary waves

Pierre Lubin; Stéphane Vincent; Jean-Paul Caltagirone


Archive | 2003

Fully Three-dimensional Direct Numerical Simulation of Plunging Breaking Waves

Pierre Lubin; Stéphane Vincent; Jean-Paul Caltagirone


Archive | 2013

DETAILED NUMERICAL INVESTIGATION OF THE THREE-DIMENSIONAL FLOW STRUCTURES UNDER BREAKING WAVES

Pierre Lubin; Stéphane Glockner


Archive | 2010

LARGE EDDY SIMULATION OF THE HYDRODYNAMICS GENERATED BY BREAKING WAVES

Pierre Lubin; Jean-Paul Caltagirone

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Olivier Kimmoun

École Normale Supérieure

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Hubert Branger

Centre national de la recherche scientifique

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Jean-Paul Caltagirone

Centre national de la recherche scientifique

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Jean-Paul Caltagirone

Centre national de la recherche scientifique

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Christian Kharif

École Normale Supérieure

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Bruno Simon

University of Bordeaux

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