ABGRALL, Rémi; ALCIN, Hubert; BEAUGENDRE, Héloïse; DOBRZYNSKI, Cécile; NOUVEAU, Léo

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ABGRALL, Rémi
Parallel tools for Numerical Algorithms and Resolution of essentially Hyperbolic problems [BACCHUS]

ALCIN, Hubert
Parallel tools for Numerical Algorithms and Resolution of essentially Hyperbolic problems [BACCHUS]

BEAUGENDRE, Héloïse
Parallel tools for Numerical Algorithms and Resolution of essentially Hyperbolic problems [BACCHUS]
Institut de Mathématiques de Bordeaux [IMB]

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Eighth International Conference on Computational Fluid Dynamics (ICCFD8), 2014-07-14, Chengdu. 2014-07 n° ICCFD8-2014-0166

Résumé en anglais

The interest on embedded boundary methods is increasing in Computational FluidDynamics because they simplify the mesh generation problem when dealing with the Navier-Stokesequations. To give a few examples, they simplify the simulation of multi-physics flows, the couplingof fluid-solid interactions in situation of large motions or deformations. Nevertheless an accuratetreatment of the wall boundary conditions remains an issue of the method. In this work, a penaltyterm added to the Navier-Stokes equations accounts for the wall boundary conditions and accuracyis recovered using mesh adaptation, thanks to the potential of unstructured meshes.< Réduire

Mots clés en anglais

Residual schemes

Immersed Boundary Method

Penalization

Unstructured grids

Mesh adaptation.

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Residual schemes applied to an embedded method expressed on unstructured adapted grids

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