Compatible discrete operator schemes for the steady incompressible stokes and navier–stokes equations

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Abstract

We extend the Compatible Discrete Operator (CDO) schemes to the steady incompressible Stokes and Navier–Stokes equations. The main features of the CDO face-based schemes are recalled: a hybrid velocity discretization with degrees of freedom at faces and cells, a stabilized velocity gradient reconstruction defined on the face-based subcell pyramids, and a discrete pressure attached to the mesh cells. We introduce a discrete divergence operator that will account for the velocity-pressure coupling, and a hybrid discretization of the convection term. The results of several benchmark test cases validate the framework.

Original languageEnglish
Title of host publicationFinite Volumes for Complex Applications IX - Methods, Theoretical Aspects, Examples, FVCA 2020
EditorsRobert Klöfkorn, Eirik Keilegavlen, Florin A. Radu, Jürgen Fuhrmann
PublisherSpringer
Pages93-101
Number of pages9
ISBN (Print)9783030436506
DOIs
Publication statusPublished - 1 Jan 2020
Event9th International Symposium on Finite Volumes for Complex Applications, FVCA 2020 - Bergen, Norway
Duration: 15 Jun 202019 Jun 2020

Publication series

NameSpringer Proceedings in Mathematics and Statistics
Volume323
ISSN (Print)2194-1009
ISSN (Electronic)2194-1017

Conference

Conference9th International Symposium on Finite Volumes for Complex Applications, FVCA 2020
Country/TerritoryNorway
CityBergen
Period15/06/2019/06/20

Keywords

  • CDO
  • Navier–Stokes
  • Stokes
  • Structure-preserving schemes

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