A robust preconditioner for fluid-structure interaction problems

T. Washio, T. Hisada, H. Watanabe, T. E. Tezduyar

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Two preconditioners are presented for equation systems of strongly coupled fluid-structure interaction computations where the structure is modeled by shell elements. These preconditioners fall into the general category of incomplete LU factorization. The two differ mainly in whether the coefficient matrix is factorized node by node or variable-by-variable. In the variable-wise preconditioner, a modified Schur complement system for pressure is solved approximately with a few iterations using a special preconditioner. The efficiencies of the two preconditioners are compared for different finite element formulations of the fluid mechanics part, including formulations with SUPG and PSPG stabilizations.

Original languageEnglish
Pages (from-to)4027-4047
Number of pages21
JournalComputer Methods in Applied Mechanics and Engineering
Volume194
Issue number39-41
DOIs
Publication statusPublished - 2005 Oct 1
Externally publishedYes

Keywords

  • Fluid-structure interaction
  • Iterative linear solver
  • Krylov subspace
  • Preconditioner

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

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