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Research gallery

My research activities rely on the development of numerical methods (in particular semi-Lagrangian Vortex methods) to simulate incompressible flows. These works are applied for instance to the following problems :

Flow past bluff bodies

Flow past a sphere at Re=300

Passive flow control using porous media

Influence of a porous layer on the flow dynamics around a hemisphere (simplified model of a side view mirror) at Re=1000

→ more results and details here

Stability analysis for passive flow control with porous media

Is a porous layer able to delay the transition to a more turbulent flow regime ? Is this delay monotonously related to the permeability of the added porous layer ? The stability analysis is an efficient tool to answer these questions:

→ Master thesis of Alessandro Castriotta (supervision : C. Mimeau (Cnam), J.-C. Robinet and R. Frantz (Ensam))
→ Master thesis of Mikail Salihoglu (supervision : C. Mimeau (Cnam), J.-C. Robinet and R. Frantz (Ensam))

Subgrid scale model for Vortex methods to perform bi-level simulations

Taylor Green vortex at Re=1600. Comparison between DNS results obtained with a 256 ³ resolution (left pictures) and results obtained with an anisotropic subgrid scale model and a 256 ³ (vorticity)-64 ³ (velocity) resolution (right pictures)

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