Analysis of various parameters affecting weir design and fabrication of Weirs: An Overview [PDF]
MATEC Web of Conferences, 2018 Several geometric parameters influence weir discharge and it is explained in our present study. The PK weir is more efficient than rectangular labyrinth weir due to reduction in entrance losses of PK weir inlet key geometry.
Vanishree B. Rao, Manjula R.
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Experimental investigation of scour downstream of a type A trapezoidal piano key weir under free and submerged flow conditions [PDF]
Journal of Hydrology and HydromechanicsIn this paper, the scour downstream of a trapezoidal Piano key weir (PKW) is investigated under free and submerged flow conditions. For this purpose, an experimental model was used in a laboratory channel with a length of 10 m, width of 0.75 m, and ...
Bodaghi Elnaz +2 more
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Discharge Capacity of a Piano Key Weir with Curvilinear Keys [PDF]
, 2021 The Piano Key Weir (PKW) has emerged as a cost effective and viable solution for dam rehabilitation and new projects with high level of space constraints. The geometrical dimensions of PKW are main factors affecting their discharging capacity.
Mishra, R. K., Ahmad, Z.
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Experimental and Simulation Studies on Water Discharge Coefficients of Rectangular Piano Key Weirs
International Journal of Technology, 2022 The piano key weir (PKW) is a developed type of labyrinth spillway with the ability to transfer large amounts of discharge by keeping executive costs constant.
Vafa Rezaei +3 more
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Journal of Engineering and Sustainable Development, 2023 In recent years, engineers have focused on finding a solution to reduce scouring downstream of piano key weirs. Piano key weirs have high efficiency in flood flow and a higher discharge coefficient.
Ali Qasim Rdhaiwi +2 more
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Estimation of A-type Piano Key weir rating curve [PDF]
, 2013 The Piano Key weir (PKW) is a hydraulically attractive alternative to linear overflow weirs, increasing the unit discharge for similar heads and spillway widths. This advantage allows operating dam reservoirs on an increased level and provides thereby an
A Schleiss +3 more
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Introduction and Investigation of a Large-Scale Piano Key Weir Fabricated Via Rapid Prototyping [PDF]
, 2022 Piano key weirs (PKW) are novel hydraulic structures, characterized by an increased discharge capacity, compared to regular weirs. Through the last decades, experimental studies have mainly focused on efficiency aspects and design regulations. Therefore,
Belay, B. +3 more
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Das Klaviertastenwehr (PKW) als effizientes Einlaufbauwerk zur Erhöhung der Abflusskapazität bestehender Hochwasserentlastungsanlagen [PDF]
, 2022 Free overfall weirs are hydraulically efficient and reliable in operation. With this, the overfall capacity depends on the hydraulically active developed length of the weir.
Pfister, Michael
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Creation of a PKW Database - Discussion [PDF]
, 2011 Piano Key Weir description involves a lot of geometrical parameters which designations are now well defined. A naming convention has been developed to enhance exchanges and cooperation between the numerous developers.
P Archambeau +13 more
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Numerical analysis of jet-induced vortices in high-head stepped spillways with a PKW crest using the Omega–Liutex method [PDF]
AIP AdvancesThis study investigates the flow characteristics and energy dissipation mechanisms of a high-head stepped weir equipped with a piano key weir (PKW) crest, focusing on vortex structures along the flume steps.
Cong Trieu Tran, Cong Ty Trinh
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