Experimental study of discharge coefficient of a Trapezoidal Piano Key Side Weir

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Seyedjavad Mina Sadat; Omid Naeini Seyed Taghi; SANEIE MOJTABA

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Paper Information

Journal: JOURNAL OF HYDRAULICS Year:2019 | Volume:14 | Issue:2 (142) Page(s): 33-46

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Title

Experimental study of discharge coefficient of a Trapezoidal Piano Key Side Weir

Author(s)

Seyedjavad Mina Sadat | Omid Naeini Seyed Taghi | SANEIE MOJTABA | Issue Writer Certificate

Keywords

Piano key weirsQ1

Discharge coefficientQ1

Abstract

Spillway is a hydraulic structure that is used for passing excess water and floods from upstream to downstream of dams. The spillways are of a variety of hydraulic structures that are constructed for various purposes in water transfer systems. The lateral overflow is constructed with an elevation less than the height of the wall of the canal, and when the surface of the water rises, lateral overflows will regulate the flow rate and control the water level in the main channel. The tests were carried out in a rectangular channel 10 m long, 0. 6 m wide, and 0. 6 m high and 16 Model piano key weir type A trapezoid with different pillars 10, 15 and 20 cm is conducted. The above-mentioned spillways have been investigated in two cases. The results show that the overflow with a pillar of 15 cm in both cases has a maximum flow rate coefficient in the ratio of 0. 20. 5, the inflow with a base of 20 cm they have the highest flow rate. Also, in similar laboratory conditions, the spillway of a trapezoidal piano key exceeds 4 times the rectangular weir.

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APA: Copy

Seyedjavad, Mina Sadat, Omid Naeini, Seyed Taghi, & SANEIE, MOJTABA. (2019). Experimental study of discharge coefficient of a Trapezoidal Piano Key Side Weir. JOURNAL OF HYDRAULICS, 14(2 (142) ), 33-46. SID. https://sid.ir/paper/124181/en

Vancouver: Copy

Seyedjavad Mina Sadat, Omid Naeini Seyed Taghi, SANEIE MOJTABA. Experimental study of discharge coefficient of a Trapezoidal Piano Key Side Weir. JOURNAL OF HYDRAULICS[Internet]. 2019;14(2 (142) ):33-46. Available from: https://sid.ir/paper/124181/en

IEEE: Copy

Mina Sadat Seyedjavad, Seyed Taghi Omid Naeini, and MOJTABA SANEIE, “Experimental study of discharge coefficient of a Trapezoidal Piano Key Side Weir,” JOURNAL OF HYDRAULICS, vol. 14, no. 2 (142) , pp. 33–46, 2019, [Online]. Available: https://sid.ir/paper/124181/en

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