Laboratory investigation of the discharge coefficient of triangular labyrinth weirs with and without slots and comparing them with piano key weirs *
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DOI: 10.1002/ird.2509
Abstract: With an increase of the length of a crest in a given width, labyrinth weirs lead to an increase in flow transition capacity over the weir. This study was performed on a laboratory flume with… read more here.
Keywords: weirs without; slot; cycle; two cycle ... See more keywords
3D Hydrodynamics of Trapezoidal Piano Key Spillways
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DOI: 10.1007/s40999-016-0100-8
Abstract: This paper compares the hydraulics and 3D flow features of the ordinary rectangular and trapezoidal plan view piano key weirs (PKWs) using two phase RANS numerical simulations. The main aim is to investigate effects of… read more here.
Keywords: piano key; hydrodynamics trapezoidal; inlet key; hydrodynamics ... See more keywords
Experimental Study of the Hydraulic Performance of D-Type Triangular Piano Key Weirs
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DOI: 10.1007/s40999-021-00630-y
Abstract: Piano key weirs are a new type of weir designed to enhance the discharge capacity of dams. The present study is aimed at experimentally evaluating the hydraulic characteristics of a D-type triangular piano key weir.… read more here.
Keywords: type triangular; triangular piano; piano; discharge coefficient ... See more keywords
Evaluation of discharge equations of the piano key weirs
Sign Up to like & getrecommendations! Published in 2019 at "Flow Measurement and Instrumentation"
DOI: 10.1016/j.flowmeasinst.2019.101577
Abstract: Abstract In present scenario, Piano key weir has played a vital role in increasing the discharge capacity of the available dams. This modified weir is the replacement of creaky and conventional labyrinth weir and it… read more here.
Keywords: coefficient discharge; evaluation; discharge; key weir ... See more keywords
Experimental study of trapezoidal piano key side weirs in a curved channel
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DOI: 10.1016/j.flowmeasinst.2019.101640
Abstract: Abstract Side weirs are hydraulic structures usually used for flow diversion in irrigation, drainage and sewer networks. The piano key weir (PKW) is the newest form of labyrinth weir. It is more efficient and needs… read more here.
Keywords: piano key; curved channel; coefficient; side weirs ... See more keywords
Free-flow discharge estimation method for Piano Key weir geometries
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DOI: 10.1016/j.jher.2017.10.003
Abstract: Abstract Currently, many existing spillways located throughout the globe require rehabilitation due to dam safety issues. Consequently, there is an increasing need for design tools that facilitate better, more economical spillway designs. Piano Key weirs… read more here.
Keywords: method; discharge; free flow; piano key ... See more keywords
Climate Change and Dams with a Focus on Morocco and Investigation of the Piano Key Weir Technology to Enhance the Climate Resilience of Moroccan Dams
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DOI: 10.15866/irece.v11i6.17792
Abstract: Climate change has been affecting significantly dams worldwide, particularly by the accentuation of extreme events. The hydraulic insufficiency of spillways is the most hazardous related risk that directly threatens the dams’ safety. Thus, the Piano… read more here.
Keywords: climate; resilience; key weir; climate change ... See more keywords