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Fluid-structure interaction coupling techniques based on sensitivities

    • University of Ghent

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    1 Citation (Scopus)

    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
    Title of host publicationProceedings of the 6th International Conference on Engineering Computational Technology
    Publication statusPublished - 2008
    Event6th International Conference on Engineering Computational Technology, ECT 2008 - Athens, Greece
    Duration: 2 Sept 20085 Sept 2008

    Publication series

    NameProceedings of the 6th International Conference on Engineering Computational Technology

    Conference

    Conference6th International Conference on Engineering Computational Technology, ECT 2008
    Country/TerritoryGreece
    CityAthens
    Period2/09/085/09/08

    Keywords

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

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