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Scour profiles at downstream of cascades
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نویسنده
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Tuna M.C. ,Emiroglu M.E.
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منبع
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scientia iranica - 2011 - دوره : 18 - شماره : 13 - صفحه:338 -347
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چکیده
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A study was conducted to simplify and broaden the procedures for estimating scour dimensionsat the downstream of cascades. there are many studies about energy dissipation, aeration and oxygentransfer in stepped-channel chutes and cascades. there is little attention paid to the scour downstreamof the stepped chutes and their downstream scour hole geometry. measurements were taken to obtaina scour hole profile in the equilibrium state of the scour, the value of the maximum depth of the scour,the location of the maximum scour depth and the length of the scour hole. it was also found that stepgeometry, stepped chute angle, downstream water level and sill types of a stilling basin are very importantparameters for the geometry of the scour hole.
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کلیدواژه
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Cascade; ,Stepped chute; ,Local scour; ,Nappe flow; ,Skimming flow; ,Transition flow; ,Flow regime.
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آدرس
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Firat University, Assistant of Civil Engineering, Turkey, Firat University, Associate Professor, Turkey
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Authors
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