Space–time interface-tracking with topology change (ST-TC)

Kenji Takizawa, Tayfun E. Tezduyar, Austin Buscher, Shohei Asada

    研究成果: Article

    75 引用 (Scopus)

    抄録

    To address the computational challenges associated with contact between moving interfaces, such as those in cardiovascular fluid–structure interaction (FSI), parachute FSI, and flapping-wing aerodynamics, we introduce a space–time (ST) interface-tracking method that can deal with topology change (TC). In cardiovascular FSI, our primary target is heart valves. The method is a new version of the deforming-spatial-domain/stabilized space–time (DSD/SST) method, and we call it ST-TC. It includes a master–slave system that maintains the connectivity of the “parent” mesh when there is contact between the moving interfaces. It is an efficient, practical alternative to using unstructured ST meshes, but without giving up on the accurate representation of the interface or consistent representation of the interface motion. We explain the method with conceptual examples and present 2D test computations with models representative of the classes of problems we are targeting.

    元の言語English
    ページ(範囲)955-971
    ページ数17
    ジャーナルComputational Mechanics
    54
    発行部数4
    DOI
    出版物ステータスPublished - 2014 10 1

    Fingerprint

    Interface Tracking
    Space-time
    Topology
    Moving Interface
    Parachutes
    Aerodynamics
    Interaction
    Mesh
    Contact
    Connectivity
    Target
    Motion
    Alternatives

    ASJC Scopus subject areas

    • Computational Theory and Mathematics
    • Mechanical Engineering
    • Ocean Engineering
    • Applied Mathematics
    • Computational Mathematics

    これを引用

    Space–time interface-tracking with topology change (ST-TC). / Takizawa, Kenji; Tezduyar, Tayfun E.; Buscher, Austin; Asada, Shohei.

    :: Computational Mechanics, 巻 54, 番号 4, 01.10.2014, p. 955-971.

    研究成果: Article

    Takizawa, Kenji ; Tezduyar, Tayfun E. ; Buscher, Austin ; Asada, Shohei. / Space–time interface-tracking with topology change (ST-TC). :: Computational Mechanics. 2014 ; 巻 54, 番号 4. pp. 955-971.
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