An inf-sup stable and robust discretization of the Stokes equations with large irrotational sources on general meshes

In this note we propose a discretization of the Stokes equations which is inf-sup stable on general polygonal or polyhedral meshes and robust with respect to the presence of large irrotational source terms. The key idea is to construct a discrete space for the velocity which extends two important properties of the Crouzeix-Raviart element to general meshes, namely the continuity of mean values at interfaces and the approximation of nontrivial solenoidal fields. As a result, it is proved that the approximation of the velocity is not affected by the presence of the irrotational part of the source term. A numerical validation of the theoretical results is provided.

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Source https://hal.science/hal-00708270
Author Di Pietro, Daniele Antonio, Lemaire, Simon
Maintainer CCSD
Last Updated May 14, 2026, 15:52 (UTC)
Created May 14, 2026, 15:52 (UTC)
Identifier hal-00708270
Language en
Rights https://about.hal.science/hal-authorisation-v1/
contributor Institut de Mathématiques et de Modélisation de Montpellier (I3M) ; Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
creator Di Pietro, Daniele Antonio
date 2012-06-14T00:00:00
harvest_object_id 2a0ae966-e0e1-4891-992a-f015ed4bf086
harvest_source_id 3374d638-d20b-4672-ba96-a23232d55657
harvest_source_title test moissonnage SELUNE
metadata_modified 2024-03-14T00:00:00
set_spec type:REPORT