An immersed boundary method using unstructured anisotropic mesh adaptation combined with level-sets and penalization techniques

The interest on embedded boundary methods increases in Computational Fluid Dynamics (CFD) because they simplify then mesh generation problem in the case of the Navier-Stokes equations. The same simplifications occur for the simulation of multi-physics flows, the coupling of fluid-solid interactions in situation of large motions or deformations, to give a few examples. Nevertheless an accurate treatment of the wall boundary conditions remains an issue of the method. In this work, the wall boundary conditions are easily taken into account through a penalization technique, and the accuracy of the method is recovered using mesh adaptation, thanks to the potential of unstructured meshes. Several classical examples are used used to demonstrate that claim.

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Additional Info

Field Value
Source https://inria.hal.science/hal-00786853
Author Abgrall, Remi, Beaugendre, Héloïse, Dobrzynski, Cécile
Maintainer CCSD
Last Updated May 14, 2026, 14:04 (UTC)
Created May 14, 2026, 14:04 (UTC)
Identifier Report N°: RR-8228
Language en
Rights https://about.hal.science/hal-authorisation-v1/
contributor Institut de Mathématiques de Bordeaux (IMB) ; Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS)
creator Abgrall, Remi
date 2013-02-10T00:00:00
harvest_object_id cb5122eb-c284-42a6-ad43-3613a817f99b
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2025-03-18T00:00:00
relation info:eu-repo/grantAgreement//226316/EU/Adaptive Schemes for Deterministic and Stochastic Flow Problems/ADDECCO
set_spec type:REPORT