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    Scale Effect in Pier-Scour Experiments

    Source: Journal of Hydraulic Engineering:;1998:;Volume ( 124 ):;issue: 006
    Author:
    Robert Ettema
    ,
    Bruce W. Melville
    ,
    Brian Barkdoll
    DOI: 10.1061/(ASCE)0733-9429(1998)124:6(639)
    Publisher: American Society of Civil Engineers
    Abstract: Presented here are the results of an enquiry into the effects of pier width on local scour depth. The results show that scour depth does not scale linearly with pier width unless there is more-or-less complete geometric similitude of pier, flow, and loose-bed particles—a condition that is rare. Geometric similitude is an important prerequisite to dynamic similitude in replicating local energy gradients for flow around piers. The implications for laboratory experiments on local scour and for design estimation of scour depth are discussed.
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      Scale Effect in Pier-Scour Experiments

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    http://yetl.yabesh.ir/yetl1/handle/yetl/24655
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    contributor authorRobert Ettema
    contributor authorBruce W. Melville
    contributor authorBrian Barkdoll
    date accessioned2017-05-08T20:43:11Z
    date available2017-05-08T20:43:11Z
    date copyrightJune 1998
    date issued1998
    identifier other%28asce%290733-9429%281998%29124%3A6%28639%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/24655
    description abstractPresented here are the results of an enquiry into the effects of pier width on local scour depth. The results show that scour depth does not scale linearly with pier width unless there is more-or-less complete geometric similitude of pier, flow, and loose-bed particles—a condition that is rare. Geometric similitude is an important prerequisite to dynamic similitude in replicating local energy gradients for flow around piers. The implications for laboratory experiments on local scour and for design estimation of scour depth are discussed.
    publisherAmerican Society of Civil Engineers
    titleScale Effect in Pier-Scour Experiments
    typeJournal Paper
    journal volume124
    journal issue6
    journal titleJournal of Hydraulic Engineering
    identifier doi10.1061/(ASCE)0733-9429(1998)124:6(639)
    treeJournal of Hydraulic Engineering:;1998:;Volume ( 124 ):;issue: 006
    contenttypeFulltext
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