Pierre Lubin
École nationale supérieure de chimie et de physique de Bordeaux
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Featured researches published by Pierre Lubin.
Proceedings of the 29th International Conference | 2005
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
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
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
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
Pierre Lubin; Stéphane Vincent; Stéphane Abadie; Jean-Paul Caltagirone
Computers & Fluids | 2004
Stéphane Vincent; Jean-Paul Caltagirone; Pierre Lubin; Tseheno Nirina Randrianarivelo
Comptes Rendus Mecanique | 2005
Pierre Lubin; Stéphane Vincent; Jean-Paul Caltagirone
Archive | 2003
Pierre Lubin; Stéphane Vincent; Jean-Paul Caltagirone
Archive | 2013
Pierre Lubin; Stéphane Glockner
Archive | 2010
Pierre Lubin; Jean-Paul Caltagirone