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    Spatio-temporal eigenmodes of plane-Poiseuille flow interacting with a finite compliant panel

    Access Status
    Fulltext not available
    Authors
    Pitman, Mark
    Lucey, Anthony
    Date
    2010
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Pitman, Mark W. and Lucey, Anthony D. 2010. Spatio-temporal eigenmodes of plane-Poiseuille flow interacting with a finite compliant panel, in Teh, K. and Davies, I. and Howard, I. (ed), 6th Australasian Congress on Applied Mechanics, ACAM 6, Dec 12-15 2010. Perth, WA: Engineers Australia.
    Source Title
    Proceedings of the 6th Australasian Congress on Applied Mechanics
    Source Conference
    6th Australasian Congress on Applied Mechanics, ACAM 6
    Additional URLs
    http://search.informit.com.au/documentSummary;dn=015125268085545;res=IELENG
    ISBN
    978-0-85825-941-6
    School
    Department of Mechanical Engineering
    URI
    http://hdl.handle.net/20.500.11937/9698
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents and deploys a hybrid computational and theoretical technique to study the stability of a fluid-structure system that comprises fully developed plane Poiseuille flow at transitional Reynolds numbers over a finite flexible wall of streamwise extent. This builds upon recent work involving a uniform inviscid flow interacting with a flexible plate held at both its ends to include consideration of the full spatio-temporally evolving, rotational flow dynamics. Although presently considering the two-dimensional case the method may be extended to three-dimensions and arbitrary mean-flow fields other than plane Poiseuille.We show how stability diagrams for the fully-coupled finite flow-structure system can be assembled, identifying classes of wall-based or fluid-based and spatio-temporal wave behaviour in the system. In doing so we present a new and versatile approach to the modelling of the fluid-structure interaction (FSI) of a finite flexible wall. The method lies between classical hydrodynamic-stability theory and direct numericalsimulation and enjoys a combination of the benefits of both of these hitherto distinct approaches to FSI problems.

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