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    Velocity and Turbulence Distribution in Unsteady Open-Channel Flows

    Source: Journal of Hydraulic Engineering:;1996:;Volume ( 122 ):;issue: 003
    Author:
    T. Song
    ,
    W. H. Graf
    DOI: 10.1061/(ASCE)0733-9429(1996)122:3(141)
    Publisher: American Society of Civil Engineers
    Abstract: Unsteady flow properties are experimentally studied in an open channel with a rough bed. A recently developed acoustic Doppler velocity profiler (ADVP) is used to obtain instantaneously the flow profiles. From these measurements, using the Fourier components method, the mean velocities, the turbulence intensities and the Reynolds-stress profile, are obtained. Thirty-three different hydrographs are experimentally investigated. The experimental results show several things. First, unsteady flow can be characterized by the overall unsteadiness parameter, Γ
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      Velocity and Turbulence Distribution in Unsteady Open-Channel Flows

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    contributor authorT. Song
    contributor authorW. H. Graf
    date accessioned2017-05-08T20:42:31Z
    date available2017-05-08T20:42:31Z
    date copyrightMarch 1996
    date issued1996
    identifier other%28asce%290733-9429%281996%29122%3A3%28141%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/24255
    description abstractUnsteady flow properties are experimentally studied in an open channel with a rough bed. A recently developed acoustic Doppler velocity profiler (ADVP) is used to obtain instantaneously the flow profiles. From these measurements, using the Fourier components method, the mean velocities, the turbulence intensities and the Reynolds-stress profile, are obtained. Thirty-three different hydrographs are experimentally investigated. The experimental results show several things. First, unsteady flow can be characterized by the overall unsteadiness parameter, Γ
    publisherAmerican Society of Civil Engineers
    titleVelocity and Turbulence Distribution in Unsteady Open-Channel Flows
    typeJournal Paper
    journal volume122
    journal issue3
    journal titleJournal of Hydraulic Engineering
    identifier doi10.1061/(ASCE)0733-9429(1996)122:3(141)
    treeJournal of Hydraulic Engineering:;1996:;Volume ( 122 ):;issue: 003
    contenttypeFulltext
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