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    Hydrodynamically Smooth Flows Over Surface Material in Alluvial Channels

    Source: Journal of Hydraulic Engineering:;1985:;Volume ( 111 ):;issue: 011
    Author:
    Jin Wu
    DOI: 10.1061/(ASCE)0733-9429(1985)111:11(1423)
    Publisher: American Society of Civil Engineers
    Abstract: It is a general practice to treat the flow in alluvial channels in two scales: the microscale over bed materials (sand grains), and the macroscale over bed forms. Contrary to common thinking, the flow over bed materials appears to be in the hydrodynamically smooth regime, or at most in the transition region. This explains why the roughness-resistance coefficient of grains still varies with the Reynolds number. Such an identification is helpful in understanding flow and transport in alluvial channels.
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      Hydrodynamically Smooth Flows Over Surface Material in Alluvial Channels

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    http://yetl.yabesh.ir/yetl1/handle/yetl/22436
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    contributor authorJin Wu
    date accessioned2017-05-08T20:39:10Z
    date available2017-05-08T20:39:10Z
    date copyrightNovember 1985
    date issued1985
    identifier other%28asce%290733-9429%281985%29111%3A11%281423%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/22436
    description abstractIt is a general practice to treat the flow in alluvial channels in two scales: the microscale over bed materials (sand grains), and the macroscale over bed forms. Contrary to common thinking, the flow over bed materials appears to be in the hydrodynamically smooth regime, or at most in the transition region. This explains why the roughness-resistance coefficient of grains still varies with the Reynolds number. Such an identification is helpful in understanding flow and transport in alluvial channels.
    publisherAmerican Society of Civil Engineers
    titleHydrodynamically Smooth Flows Over Surface Material in Alluvial Channels
    typeJournal Paper
    journal volume111
    journal issue11
    journal titleJournal of Hydraulic Engineering
    identifier doi10.1061/(ASCE)0733-9429(1985)111:11(1423)
    treeJournal of Hydraulic Engineering:;1985:;Volume ( 111 ):;issue: 011
    contenttypeFulltext
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