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    Flow-Induced Deformantions of a Compliant Insert in Channel Flow: from Small to Large Amplitudes

    Access Status
    Fulltext not available
    Authors
    Lai, Lawrence
    Lucey, Anthony
    Elliott, Novak
    Date
    2012
    Type
    Conference Paper
    
    Metadata
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    Citation
    Lai, Lawrence S.H. and Lucey, Anthony D. and Elliott, Novak S.J. 2012. Flow-Induced Deformantions of a Compliant Insert in Channel Flow: from Small to Large Amplitudes, in Stanisic, M. et al. (ed), Proceedings of the International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Aug 12-15 2012. Chicago, IL, USA: ASME.
    Source Title
    Proceedings of the ASME 2012 International Design Engineering Technical Conferences &Computers and Information in Engineering Conference
    Source Conference
    ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference
    DOI
    10.1115/DETC2012-70368
    ISBN
    9780791845042
    URI
    http://hdl.handle.net/20.500.11937/29291
    Collection
    • Curtin Research Publications
    Abstract

    In this paper we consider a fluid-conveying channel with a compliant insert undergoing large amplitude flow-induced deformations. The objective is to assess the suitability of an open source finite element library oomph-lib for modelling this system. The fundamental system is relevant to a host of applicationsin both engineered (e.g. flexible-pipes, membrane filters, and general aero-/hydro-elasticity) and biomechanical (e.g. blood flow, airway flow) systems. The structural model uses a geometricallynonlinear formulation of the solid mechanics. Viscous flow is modelled at Reynolds numbers producing unsteady laminar flow. We present a brief summary of previous component validations with oomph-lib. We then focus on the unsteady-state FSI validation by comparing with published results, obtainedusing different computational schemes. This is done for both small-amplitude and large-amplitude wall deformations. Finally, we look at some preliminary energetics analysis of the flexible wall. The validations demonstrate the suitability and versatility of oomph-lib as a modelling and predictive tool. The flexible wall energetics validation show the possibility of understanding system stability through analysis of the flexible wall and fluid energetics.

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