STUDY ON SPLITTERS EFFECT ON THE EXTENT AND SLOPE OF THE SCOUR HOLE DOWNSTREAM OF OVERFLOW SPILLWAYS

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ZARRATI A.R.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: JOURNAL OF HYDRAULICS Year:2015 | Volume:9 | Issue:4 Page(s): 15-24

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Title

STUDY ON SPLITTERS EFFECT ON THE EXTENT AND SLOPE OF THE SCOUR HOLE DOWNSTREAM OF OVERFLOW SPILLWAYS

Author(s)

ZARRATI A.R. | | Issue Writer Certificate

Keywords

SCOURINGQ2

DAMSQ2

OVERFLOW SPILLWAYSQ2

SPLITTERQ2

Abstract

SCOURING downstream of OVERFLOW SPILLWAYS is an important factor in the design of plunge pools and tail-pond DAMS. One of the methods to reduce SCOURING of falling jets is employing SPLITTERs on overflow spillway. SPLITTERs cause the falling jet to expand and entrain air. As a result, the jet strength for SCOURING reduces. In the present work the scour hole extent and slopes located downstream of an overflow spillway with or without SPLITTERs is studied in a large hydraulic model with 6 m height. Experiments were conducted with different discharges and tail water depths. It was found that SPLITTERs reduce the scour hole slopes as well as the scour extent (width and length). Experiments show that with SPLITTERs the maximum width and length of the scour hole reduced by 17% and 20%, respectively. It was also concluded that with SPLITTERs, the ratio of scour hole length to its depth increased by 12% and the ratio of scour hole width to its depth increased by 14%. It was also observed that the scour hole slopes reduce in all experiments when SPLITTERs are present.

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APA: Copy

ZARRATI, A.R.. (2015). STUDY ON SPLITTERS EFFECT ON THE EXTENT AND SLOPE OF THE SCOUR HOLE DOWNSTREAM OF OVERFLOW SPILLWAYS. JOURNAL OF HYDRAULICS, 9(4), 15-24. SID. https://sid.ir/paper/124216/en

Vancouver: Copy

ZARRATI A.R.. STUDY ON SPLITTERS EFFECT ON THE EXTENT AND SLOPE OF THE SCOUR HOLE DOWNSTREAM OF OVERFLOW SPILLWAYS. JOURNAL OF HYDRAULICS[Internet]. 2015;9(4):15-24. Available from: https://sid.ir/paper/124216/en

IEEE: Copy

A.R. ZARRATI, “STUDY ON SPLITTERS EFFECT ON THE EXTENT AND SLOPE OF THE SCOUR HOLE DOWNSTREAM OF OVERFLOW SPILLWAYS,” JOURNAL OF HYDRAULICS, vol. 9, no. 4, pp. 15–24, 2015, [Online]. Available: https://sid.ir/paper/124216/en

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