Umeå University's logo

umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A multimesh finite element method for the Stokes problem
Simula Research Laboratory, Lysaker, Norway; Mathematics and Cybernetics, SINTEF Digital, Oslo, Norway.
Umeå University, Faculty of Science and Technology, Department of Mathematics and Mathematical Statistics.
Department of Mathematical Sciences, Chalmers University of Technology and University of Gothenburg, Göteborg, Sweden.
2020 (English)In: Numerical methods for flows: FEF 2017 selected contributions / [ed] Harald van Brummelen; Alessandro Corsini; Simona Perotto; Gianluigi Rozza, Springer, 2020, p. 189-198Conference paper, Published paper (Refereed)
Abstract [en]

The multimesh finite element method enables the solution of partial differential equations on a computational mesh composed by multiple arbitrarily overlapping meshes. The discretization is based on a continuous–discontinuous function space with interface conditions enforced by means of Nitsche’s method. In this contribution, we consider the Stokes problem as a first step towards flow applications. The multimesh formulation leads to so called cut elements in the underlying meshes close to overlaps. These demand stabilization to ensure coercivity and stability of the stiffness matrix. We employ a consistent least-squares term on the overlap to ensure that the inf-sup condition holds. We here present the method for the Stokes problem, discuss the implementation, and verify that we have optimal convergence.

Place, publisher, year, edition, pages
Springer, 2020. p. 189-198
Series
Lecture Notes in Computational Science and Engineering, ISSN 1439-7358, E-ISSN 2197-7100 ; 132
Keywords [en]
CutFEM, FEM, Multimesh, Nitsche, Non-matching mesh, Unfitted mesh
National Category
Computational Mathematics
Identifiers
URN: urn:nbn:se:umu:diva-197949DOI: 10.1007/978-3-030-30705-9_17Scopus ID: 2-s2.0-85081755541ISBN: 978-3-030-30704-2 (print)ISBN: 978-3-030-30704-2 (print)ISBN: 978-3-030-30705-9 (electronic)OAI: oai:DiVA.org:umu-197949DiVA, id: diva2:1682182
Conference
FEF 2017, 19th International Conference on Finite Elements in Flow Problems, Rome, Italy, April 5-7, 2017
Available from: 2022-07-08 Created: 2022-07-08 Last updated: 2023-03-24Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Larson, Mats G.

Search in DiVA

By author/editor
Larson, Mats G.
By organisation
Department of Mathematics and Mathematical Statistics
Computational Mathematics

Search outside of DiVA

GoogleGoogle Scholar

doi
isbn
urn-nbn

Altmetric score

doi
isbn
urn-nbn
Total: 273 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf