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    Meandering Instability of a Vertical Plume

    Source: Journal of Engineering Mechanics:;2009:;Volume ( 135 ):;issue: 002
    Author:
    Albert Dai
    ,
    Marcelo H. García
    DOI: 10.1061/(ASCE)0733-9399(2009)135:2(111)
    Publisher: American Society of Civil Engineers
    Abstract: The meandering instability of a two-dimensional vertical plume is considered in this paper. The base flow profile is derived using boundary layer approximation and similarity hypothesis, in the spirit of Blasius boundary layer solution. Using linear stability analysis, we derive a modified version of the Orr-Sommerfeld equation governing the disturbances. The resulting eigenvalue problem is solved by the Galerkin method. It is found that a vertical plume is unstable to meandering, and in particular, three different wavelengths of meanders exist. A meandering instability of long wavelength ensues at the lowest portion of a vertically rising plume, where
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      Meandering Instability of a Vertical Plume

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    contributor authorAlbert Dai
    contributor authorMarcelo H. García
    date accessioned2017-05-08T22:41:30Z
    date available2017-05-08T22:41:30Z
    date copyrightFebruary 2009
    date issued2009
    identifier other%28asce%290733-9399%282009%29135%3A2%28111%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/86635
    description abstractThe meandering instability of a two-dimensional vertical plume is considered in this paper. The base flow profile is derived using boundary layer approximation and similarity hypothesis, in the spirit of Blasius boundary layer solution. Using linear stability analysis, we derive a modified version of the Orr-Sommerfeld equation governing the disturbances. The resulting eigenvalue problem is solved by the Galerkin method. It is found that a vertical plume is unstable to meandering, and in particular, three different wavelengths of meanders exist. A meandering instability of long wavelength ensues at the lowest portion of a vertically rising plume, where
    publisherAmerican Society of Civil Engineers
    titleMeandering Instability of a Vertical Plume
    typeJournal Paper
    journal volume135
    journal issue2
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)0733-9399(2009)135:2(111)
    treeJournal of Engineering Mechanics:;2009:;Volume ( 135 ):;issue: 002
    contenttypeFulltext
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