Fluid-structure interaction coupling techniques based on sensitivities

J. Degroote, P. Bruggeman, R. Haelterman, J. Vierendeels

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The coupled solution of a time step in a partitioned fluid-structure interaction simulation must satisfy the equilibrium conditions on the fluid-structure interface and can be obtained with coupling iterations between fluid and structure. This paper demonstrates that coupling with reduced-order models and Interface-GMRESR require less coupling iterations than Aitken underrelaxation and interface-GMRES because the former techniques use sensitivities based on all previous coupling iterations. The change in performance due to a variation of the time step and structural stiffness is explained with Fourier error analysis of the fixed-point iterations between flow and structure in a simulation of the flow in a flexible tube.

Original languageEnglish (US)
Title of host publicationProceedings of the 6th International Conference on Engineering Computational Technology
StatePublished - Dec 1 2008
Event6th International Conference on Engineering Computational Technology, ECT 2008 - Athens, Greece
Duration: Sep 2 2008Sep 5 2008

Publication series

NameProceedings of the 6th International Conference on Engineering Computational Technology

Other

Other6th International Conference on Engineering Computational Technology, ECT 2008
CountryGreece
CityAthens
Period9/2/089/5/08

Keywords

  • Aitken underrelaxation
  • Flexible tube
  • Fluid-structure interaction
  • Fourier error analysis
  • Interface-GMRES(R)
  • Partitioned solution
  • Reduced-order models

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  • Cite this

    Degroote, J., Bruggeman, P., Haelterman, R., & Vierendeels, J. (2008). Fluid-structure interaction coupling techniques based on sensitivities. In Proceedings of the 6th International Conference on Engineering Computational Technology (Proceedings of the 6th International Conference on Engineering Computational Technology).