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    Stability of a Cluster of Flexible Cylinders in Bounded Axial Flow

    Source: Journal of Applied Mechanics:;1977:;volume( 044 ):;issue: 003::page 401
    Author:
    M. P. Paidoussis
    ,
    S. Suss
    DOI: 10.1115/1.3424091
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper deals with the dynamics of a cluster of parallel flexible cylinders in a cylindrical channel in the presence of an axially flowing fluid. The equations of motion are derived, taking into account inviscid and viscous hydrodynamic coupling of small arbitrary motions of the cylinders. Solutions of the equations of motion yield the eigenfrequencies and modal shapes of the system. For sufficiently high flow velocities the system loses stability by divergence and flutter, similarly to a solitary cylinder in unbounded flow; however, the critical flow velocities are much lower, as proximity to other cylinders and to the channel wall severely destabilize the system.
    keyword(s): Stability , Axial flow , Cylinders , Flow (Dynamics) , Channels (Hydraulic engineering) , Equations of motion , Flutter (Aerodynamics) , Shapes , Motion , Fluids AND Dynamics (Mechanics) ,
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      Stability of a Cluster of Flexible Cylinders in Bounded Axial Flow

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    http://yetl.yabesh.ir/yetl1/handle/yetl/89486
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    contributor authorM. P. Paidoussis
    contributor authorS. Suss
    date accessioned2017-05-08T23:02:13Z
    date available2017-05-08T23:02:13Z
    date copyrightSeptember, 1977
    date issued1977
    identifier issn0021-8936
    identifier otherJAMCAV-26077#401_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/89486
    description abstractThis paper deals with the dynamics of a cluster of parallel flexible cylinders in a cylindrical channel in the presence of an axially flowing fluid. The equations of motion are derived, taking into account inviscid and viscous hydrodynamic coupling of small arbitrary motions of the cylinders. Solutions of the equations of motion yield the eigenfrequencies and modal shapes of the system. For sufficiently high flow velocities the system loses stability by divergence and flutter, similarly to a solitary cylinder in unbounded flow; however, the critical flow velocities are much lower, as proximity to other cylinders and to the channel wall severely destabilize the system.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleStability of a Cluster of Flexible Cylinders in Bounded Axial Flow
    typeJournal Paper
    journal volume44
    journal issue3
    journal titleJournal of Applied Mechanics
    identifier doi10.1115/1.3424091
    journal fristpage401
    journal lastpage408
    identifier eissn1528-9036
    keywordsStability
    keywordsAxial flow
    keywordsCylinders
    keywordsFlow (Dynamics)
    keywordsChannels (Hydraulic engineering)
    keywordsEquations of motion
    keywordsFlutter (Aerodynamics)
    keywordsShapes
    keywordsMotion
    keywordsFluids AND Dynamics (Mechanics)
    treeJournal of Applied Mechanics:;1977:;volume( 044 ):;issue: 003
    contenttypeFulltext
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