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    Effect of Vegetation on Banks on Distributions of Velocity and Reynolds Stress under Accelerating Flow

    Source: Journal of Hydrologic Engineering:;2010:;Volume ( 015 ):;issue: 009
    Author:
    Hossein Afzalimehr
    ,
    Elham Fazel Najfabadi
    ,
    Vijay P. Singh
    DOI: 10.1061/(ASCE)HE.1943-5584.0000229
    Publisher: American Society of Civil Engineers
    Abstract: Vegetation on banks of natural channels exercises a significant influence on the flow structure and in turn on the velocity distribution as well as the distribution of Reynolds stress (the random turbulent fluctuations in fluid momentum). This study experimentally investigated the effect of vegetation on banks on accelerating flow in a gravel-bed flume. The results showed that in the presence of vegetation the Reynolds stress distribution became nonlinear and the velocity distribution took on a deformed S shape near the vegetated banks. In addition, vegetation on banks had more influence on the location of maximum velocity than had the aspect ratio. The log law fitted the data near the bed up to
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      Effect of Vegetation on Banks on Distributions of Velocity and Reynolds Stress under Accelerating Flow

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    https://yetl.yabesh.ir/yetl1/handle/yetl/63100
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    contributor authorHossein Afzalimehr
    contributor authorElham Fazel Najfabadi
    contributor authorVijay P. Singh
    date accessioned2017-05-08T21:48:46Z
    date available2017-05-08T21:48:46Z
    date copyrightSeptember 2010
    date issued2010
    identifier other%28asce%29he%2E1943-5584%2E0000250.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/63100
    description abstractVegetation on banks of natural channels exercises a significant influence on the flow structure and in turn on the velocity distribution as well as the distribution of Reynolds stress (the random turbulent fluctuations in fluid momentum). This study experimentally investigated the effect of vegetation on banks on accelerating flow in a gravel-bed flume. The results showed that in the presence of vegetation the Reynolds stress distribution became nonlinear and the velocity distribution took on a deformed S shape near the vegetated banks. In addition, vegetation on banks had more influence on the location of maximum velocity than had the aspect ratio. The log law fitted the data near the bed up to
    publisherAmerican Society of Civil Engineers
    titleEffect of Vegetation on Banks on Distributions of Velocity and Reynolds Stress under Accelerating Flow
    typeJournal Paper
    journal volume15
    journal issue9
    journal titleJournal of Hydrologic Engineering
    identifier doi10.1061/(ASCE)HE.1943-5584.0000229
    treeJournal of Hydrologic Engineering:;2010:;Volume ( 015 ):;issue: 009
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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