Modelling of fluid-structure interactions with the space-time finite elements: Solution techniques

Tayfun E. Tezduyar*, Sunil Sathe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

353 Citations (Scopus)


The space-time fluid-structure interaction (FSI) techniques developed by the Team for Advanced Flow Simulation and Modeling (T*AFSM) have been applied to a wide range of 3D computation of FSI problems, some as early as in 1994 and many with challenging complexities. In this paper, we review these space-time FSI techniques and describe the enhancements introduced recently by the T*AFSM to increase the scope, accuracy, robustness and efficiency of these techniques. The aspects of the FSI solution process enhanced include the deforming-spatial-domain/ stabilized space-time (DSD/SST) formulation, the fluid-structure interface conditions, the preconditioning techniques used in iterative solution of the linear equation systems, and a contact algorithm protecting the quality of the fluid mechanics mesh between the structural surfaces coming into contact. We present a number of 3D numerical examples computed with these new stabilized space-time FSI (SSTFSI) techniques.

Original languageEnglish
Pages (from-to)855-900
Number of pages46
JournalInternational Journal for Numerical Methods in Fluids
Issue number6-8
Publication statusPublished - 2007 Jul 20
Externally publishedYes


  • Finite elements
  • Fluid-structure interactions
  • Segregated solution techniques
  • Space-time methods

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Applied Mathematics


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