A naming convention for the Piano Key Weirs geometrical parameters [PDF]
Flood management is more than ever an issue for dam designers and engineering consulting firms in charge of rehabilitation works. Piano Key Weirs are a new cost-effective type of spillway designed to improve dams discharge capacity.
Laugier, F. +7 more
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Discharge Efficiency of an Innovative Composite Piano Key Weir [PDF]
Climate-change-induced increases in extreme rainfall events necessitate the enhancement of discharge capacity in aging dam infrastructures. Piano Key Weirs (PKWs), with their compact footprint and efficient discharge performance, present a promising ...
Xiaoyang Shen, Mario Oertel, Shaoxia Jin
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Laboratory and Numerical Study of Hydraulic Loss and Discharge Coefficient in Rectangular Labyrinth and Piano Key Weirs [PDF]
علوم آب و خاکthe impact of hydraulic loss on the performance of weirs should not be overlooked. In this study, a laboratory flume measuring 8 meters in length, 0.6 meters in width, and 0.6 meters in height was used to investigate the hydraulic loss of the weirs and ...
R. Ghasemi Ghasemvand +3 more
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CFD Simulations of Flow Characteristics of a Piano Key Weir Spillway [PDF]
, 2020 Comprehensive rehabilitation projects of dam spillways are made in Sweden, due to stricter dam safety guidelines for their discharge capacity. The Piano Key Weir (PKW) is an innovative design which has proven effective through several renovation projects
Sjösten, William, Vadling, Victor
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Experimental parametric study for hydraulic design of PKWs [PDF]
The implementation of a new type of labyrinth spillway, called PKW (Piano Key Weir) reveals as a performing alternative for increasing the overflow capacity of existing dams.
Schleiss, Anton +2 more
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Stepped spillway Downstream of a Piano Key Weir - Critical length for uniform flow [PDF]
, 2013 peer reviewedRecent researches showed the rapid aeration of the flow downstream of piano key weirs. This could be related to the specific geometric features of the structure, creating several interacting flows and jets downstream.
Erpicum, Sébastien +4 more
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Interfacial Velocity Characteristics Downstream of a Piano Key Weir Versus a Linear Weir in a Horizontal Channel [PDF]
The downstream flow characteristics of piano key weirs (PKWs) are highly complex, manifested by significant localized self-aeration due to nape collisions and plunging jets impacting the downstream free-surface. For PKWs installed in horizontal channels,
Belay, Biruk, Oertel, Mario
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Experimental study of trapezoidal and rectangular piano key weirs with different inlet/outlet width ratios. [PDF]
, 2020 Piano Key Weirs (PKW) are non-linear weir structures, which are relatively new weir structures. These weirs were developed in the late 1990’s, then in the following years several structures were investigated in experimental as well as numerical models ...
MORALES QUINTERO, ANDREY FELIPE
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Investigation of Flow Field Near a Type-A Piano Key Weir [PDF]
Piano Key Weirs (PKWs) enhance spillway capacity and induce complex flow patterns around their inlet and outlet keys. This study investigates the flow near a Type-A PKW using Computational Fluid Dynamics (CFD).
Quamar, M. S., Hussain, S., Ahmad, Z.
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Piano Key Weir With Orifice Sluice [PDF]
In recent years, many Piano Key Weirs (PKW) have been built around the world. In Vietnam there are more than 18 PKWs in operation to the present. However, during the operation, some experience has been drawn on the design and application conditions. This
Thuy, Dau Xuan
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