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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Analysis of various parameters affecting weir design and fabrication of Weirs: An Overview
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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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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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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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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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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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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Comparison of Hydraulic Performance of Linear and Nonlinear Piano-Key Weirs in Plan
علوم آب و خاک, 2019 In this research, by using FLOW3D, the performance of non-linear (arced) piano key (PKW-NL) in plan and linear piano key weir (PKW-L), with equal length of weir, was compared.
A. Rezaei Ahvanooei +2 more
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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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