Discharge coefficients for free and submerged flow over Piano Key weirs

A Kabiri-Samani, A Javaheri - Journal of hydraulic research, 2012 - Taylor & Francis
A comprehensive experimental investigation was performed to better understand the effect
of the weir geometry of a Piano Key weir (PKW) on the discharge coefficient for both free and …

A review of studies on estimating the discharge coefficient of flow control structures based on the soft computing models

M Haghbin, A Sharafati - Flow Measurement and Instrumentation, 2022 - Elsevier
The discharge coefficient (Cd) plays a vital role in the accurate design and safety of weirs,
spillways, and dams. In the last decade, Soft Computing (SC) models, which showed …

Hydraulic design of A-type piano key weirs

ML Ribeiro, M Pfister, AJ Schleiss… - Journal of Hydraulic …, 2012 - Taylor & Francis
Piano Key Weirs (PKWs) are an alternative to linear overflow structures, increasing the unit
discharge for similar heads and spillway widths. Thus, they allow to operate reservoirs with …

[HTML][HTML] Prediction of discharge coefficient of triangular labyrinth weirs using Adaptive Neuro Fuzzy Inference System

AH Haghiabi, A Parsaie, S Ememgholizadeh - Alexandria Engineering …, 2018 - Elsevier
In this paper, the discharge coefficient of triangular labyrinth weir was predicted using multi-
layer perceptron (MLP) neural network and Adaptive Neuro Fuzzy Inference System …

Piano key weir hydraulics and labyrinth weir comparison

RM Anderson, BP Tullis - Journal of Irrigation and Drainage …, 2013 - ascelibrary.org
A piano key (PK) weir is a type of nonlinear (labyrinth-type) control structure with a relatively
small spillway footprint. No standard PK weir design procedure is available, and the amount …

Scale effects in physical piano key weirs models

S Erpicum, BP Tullis, M Lodomez… - Journal of Hydraulic …, 2016 - Taylor & Francis
With inertia and gravity representing the dominant forces for most open channel flow
applications (eg weir flow), Froude similitude is commonly used for scaling hydraulic …

Hybrid meta-heuristics artificial intelligence models in simulating discharge passing the piano key weirs

M Zounemat-Kermani, A Mahdavi-Meymand - Journal of hydrology, 2019 - Elsevier
Piano key weirs (PKWs) are acquired and developed for free surface control structures
which improve their performance by increasing the storage capacity and flood evacuation. In …

Experimental parametric study and design of Piano Key Weirs

O Machiels, M Pirotton, A Pierre, B Dewals… - Journal of Hydraulic …, 2014 - Taylor & Francis
ABSTRACT Piano Key Weirs are an effective solution for dam rehabilitation as well as new
dam projects with a high level of hydraulic constraints. In order to improve the efficiency of …

[图书][B] Hydraulic engineering of dams

WH Hager, AJ Schleiss, RM Boes, M Pfister - 2020 - taylorfrancis.com
Hydraulic engineering of dams and their appurtenant structures counts among the essential
tasks to successfully design safe water-retaining reservoirs for hydroelectric power …

[PDF][PDF] Experimental study of the hydraulic behaviour of Piano Key Weirs

O Machiels - 2012 - orbi.uliege.be
I also have to thank some people for their scientific collaboration and the exchange of
experimental results essential to the validation of the methods and models developed in this …