Pressure stabilization of finite element approximations of time-dependent incompressible flow problems

Gabriel Barrenechea, Jordi Blasco

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper we develop and analyze pressure stabilized, finite element methods for the solution of the transient Stokes problem, which is a linear model problem of transient incompressible flow. A model for the bubble enrichment is proposed to stabilize the numerical solution and an implicit backward Euler method is considered for the time approximation. Different methods are obtained depending on whether bubbles are allowed to evolve with time or they are considered quasi-static. Stability estimates are provided for the two methods considered, both for the velocity and the pressure solutions. Numerical results obtained on test cases are also given, which confirm the theoretical stability results.
Original languageEnglish
Pages (from-to)219-231
Number of pages13
JournalComputer Methods in Applied Mechanics and Engineering
Volume197
Issue number1-4
DOIs
Publication statusPublished - 1 Dec 2007

Keywords

  • finite elements
  • incompressible flow
  • time-dependent Stokes problem
  • stability analysis
  • pressure stabilization

Fingerprint Dive into the research topics of 'Pressure stabilization of finite element approximations of time-dependent incompressible flow problems'. Together they form a unique fingerprint.

Cite this