Thèmes de Recherche

Modélisation et simulation numérique en Mécanique des Fluides

Modèles et méthodes en écoulements multi-fluides et multi-phasique

Méthodes de volumes finis

Méthodes numériques sur GPU et General Purpose GPU

Réduction de modèles, réduction d'ordre

Data-driven modeling

Identification d'équations d'un système physique par les données

 

Interaction CFD temps réel. Collaboration C. Labourdette
Interaction CFD temps réel. Collaboration C. Labourdette

Collapse of a water column. Finite volume method with low-diffusive interface capturing strategy.

Air-water flow -- Rayleigh-Taylor instability. Collaboration A. Bernard-Champmartin
Air-water flow -- Rayleigh-Taylor instability. Collaboration A. Bernard-Champmartin
Problème de scattering. Collaboration F. Salvarani
Problème de scattering. Collaboration F. Salvarani
Complex compressible fluid flow computation
Complex compressible fluid flow computation
Ecoulements gas-liquide-solide
Ecoulements gas-liquide-solide
Yet another complex compressible flow computation
Yet another complex compressible flow computation
Impact of two blocks of dense compressible fluids
Impact of two blocks of dense compressible fluids
Interface capturing ("multimaterial" stretched Salezak disk)
Interface capturing ("multimaterial" stretched Salezak disk)
Antidiffusive interface capturing. Stretched Salezak disk
Antidiffusive interface capturing. Stretched Salezak disk

Transport of a marker function with initial triple and quadruple points

Case of filamentation
Case of filamentation
Case of filamentation - GPU computing
Case of filamentation - GPU computing
<Click to maximize>
Case of filamentation, more stretched ...
Méthodes Lattice Boltzmann (collaboration Marie Béchereau)
Méthodes Lattice Boltzmann (collaboration Marie Béchereau)
Compressible multimaterial vortex flow
Compressible multimaterial vortex flow
Rayleigh-Taylor Instability
Rayleigh-Taylor Instability
Yet another Rayleigh-Taylor instability
Yet another Rayleigh-Taylor instability
Again another one
Again another one
RT instability on fine grid
RT instability on fine grid
RT instability on fine grid (the end)
RT instability on fine grid (the end)
Image Rayleigh-Taylor Instability -- Big Image [401.0 KB] here
RayleighTaylorInstability5.png
Format d'image Portable Network 401.0 KB
RT mushrooms
RT mushrooms
RT Mushrooms and needles
RT Mushrooms and needles
Impact problem
Impact problem
High speed penetration of a film of fluid
High speed penetration of a film of fluid
Vorticity
Vorticity
Details
Details
Mixture cells
Mixture cells
Multi-material flow "triple point" case
Multi-material flow "triple point" case
Materials under compression, vorticity and instabilities
Materials under compression, vorticity and instabilities
Complex flow
Complex flow
Gloup gloup ...
Gloup gloup ...
Wave breaking analysis
Wave breaking analysis
Wave breaking analysis
Wave breaking analysis
Splash ...
Splash ...
High resolution of the image
Splash2.png
Format d'image Portable Network 315.8 KB
Yet another breaking wave. Flaping wave maker on the left boundary (ALE approach). Collaboration with Luc Lenain (UCSD)
Yet another breaking wave. Flaping wave maker on the left boundary (ALE approach). Collaboration with Luc Lenain (UCSD)

CNRS News

The Earth, precariously balanced (lun., 22 avril 2024)
On our planet, everything is interconnected, from terrestrial and marine ecosystems and biodiversity to ice sheets, rivers and oceans. But a recent report reveals that the dynamics of these different systems is being destabilised by human activities to such an extent that they are reaching points of no return. On the occasion of Earth Day 2024, two of the report’s co-authors ring the alarm bell.
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Landscapes to listen to (Mon, 15 Apr 2024)
The American Wild West, and especially Arizona, is not just cactuses, mountains and golden plains. Its dramatic landscapes are also audible. Anne Sourdril, a CNRS anthropologist, and her ecologist colleague Luc Barbaro have recorded the sounds of this ecosystem, so different from that in France.
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Content

Bilans de l'action des équipes Valeurs de la République : Mars-2024 - Deuxième trimestre de l'année 2023-2024 (ven, 19/04/2024 - 17:05 )
Les signalements des atteintes à la laïcité et aux principes de la République remontés des écoles et des établissements scolaires sont les suivants pour le mois de mars 2024 et le deuxième trimestre de l'année 2023-2024.
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Consultation nationale sur les programmes de français et de mathématiques au cycle 1 et au cycle 2 (jeu, 18/04/2024 - 16:40 )
En janvier 2024, le Conseil supérieur des programmes (CSP) a été chargé de proposer des nouveaux programmes en français et mathématiques de la maternelle à la fin du cycle 2, pour une entrée en vigueur à la rentrée 2024. Le CSP a rendu public les projets de programmes le 8 avril 2024. Une consultation sur les projets de programmes est organisée du 16 avril 2024 au 13 mai 2024.
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