From Labyrinth to Piano Key Weirs – A historical review [PDF]
, 2012 Free crest spillways are hydraulically efficient and safe in operation. Since their discharge capacity is directly proportional to the crest length several types have been developed with the purpose to increase the length of the latter. Among these types
A Schleiss, Schleiss, Anton
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An iterative hydraulic design methodology based on numerical modeling for piano key weirs [PDF]
, 2022 Piano Key Weir (PKW) is a special type of overflow weir which provides an improved discharge capacity with its increased crest length. Increased discharge capacity makes this weir an attractive alternative in the rehabilitation of existing spillways ...
Köken, Mete +2 more
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Developing Discharge Coefficient Formula for Different Piano Key Weir Characteristics [PDF]
, 2023 This study mainly aims to investigate and quantify the influence of piano key weir (PKW) characteristics on its discharge coefficient. Accordingly, based on dimensional analysis, seventy-two experimental runs were carried out using sixteen PKW physical ...
AR Hamed, Mohamed
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Conducting experimental and numerical studies to analyze the impact of the base nose shape on flow hydraulics in PKW weir using FLOW 3D [PDF]
Journal of Hydraulic StructuresWeirs serve as fundamental structures for channeling excess flow from behind dams to downstream areas. In this study, a numerical and laboratory investigation was conducted to explore the impact of different base nose shapes installed under the outlet ...
Behshad Mardasi +2 more
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Influence of some geometrical parameters on Piano Key Weir discharge efficiency [PDF]
, 2016 The Piano Key Weir (PKW) is a type of labyrinth weir with efficient hydraulic performance especially at low heads.Since the primary parameters were extensively studied, Electricité De France (EDF) launched a new experimental program to improve the ...
Cicero, G. M.
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Piano Key Weir design study at Raviege dam [PDF]
, 2011 peer reviewedThe 40-m high Raviege dam, built in 1957 and operated by Electricité de France (EDF), is located in South West of France, on the Agout River.
Erpicum, Sébastien +5 more
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Numerical Simulation of Flow Over the Arced Trapezoidal Piano Key Weir [PDF]
Journal of Hydraulic and Water EngineeringWeir is one of the most common man-made hydraulic structures that are used to measure the flow in canals, store water, and control floods. The piano key weir (PKW) is a type of non-linear weir and is considered one of the best hydraulic-economical ...
Adel Edalati, Ramin Amini
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Piano-Key-Weirs as in-channel applications [PDF]
, 2023 With reduced footprint and excellent hydraulic performance, piano key weirs (PKW) have been gaining growing attention in the past two decades as a favorable up-to-date solution for the rehabilitation of spillways as well as in-channel applications ...
Shen, Xiaoyang
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Numerical Analysis of Flow Hydraulic in Trapezoidal Labyrinths and Piano Key Weirs
علوم آب و خاک, 2020 The flow fields over a trapezoidal labyrinth weir (two-cycle) and a piano key weir were simulated using Flow3D, studying the impact of each model on the flow field in the weirs and the coefficient of discharge in comparison with the available ...
R. Gharibvand +4 more
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Prediction of the discharge capacity of piano key weirs using artificial neural networks
Journal of HydroinformaticsThe discharge capacity of the piano key weir (PKW) is an important flow feature which ultimately decides the design of PKWs. In the present research work, the different architecture of artificial neural networks (ANNs) was employed to predict the ...
Mujahid Iqbal, Usman Ghani
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