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X-WR-CALDESC:Évènements pour Laboratoire de Mathématiques de Versailles
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DTSTART;TZID=Europe/Paris:20220602T140000
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DTSTAMP:20220616T151032Z
CREATED:20220318T101532Z
LAST-MODIFIED:20220616T151032Z
UID:10049-1654178400-1654182000@lmv.math.cnrs.fr
SUMMARY:EDP : Bastien Manach (LMV) : Cell-centered Lagrangian scheme for multi-material flows with pressure equilibration
DESCRIPTION:The presentation will focus on a cell-centered Lagrangian scheme for the multimaterial hydrodynamics model with equal pressure assumption. The scheme is conservative in mass\, momentum and total energy while being entropic per material. This last point is critical for various engineer applications but remains in general not addressed. The entropy dissipation of each material is taken as an arbitrary portion of the global entropy dissipation hence mimicking different viscosity operators and the underlying vanishing viscosity solution. The scheme is confronted with different 1 or 2-dimensional test cases where materials have highly different equations of state. These test cases attest the robustness of the scheme and show that pressures are kept equal up to the scheme order or even strictly if an additional relaxation procedure is added.
URL:https://lmv.math.cnrs.fr/evenenement/edp-bastien-manard/
LOCATION:Bâtiment Fermat\, salle 4205
CATEGORIES:Séminaire EDP
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