Discharge estimation over piano key weirs: A review of recent developments

RK Bhukya, M Pandey, M Valyrakis, P Michalis - Water, 2022 - mdpi.com
The piano key (PK) weir has advanced over the labyrinth weir to increase the discharge
capacity. Piano key weirs exhibit nonlinear flow behavior and are easy to place on the …

Hydraulic design and analysis of piano key weirs: a review

D Singh, M Kumar - Arabian Journal for Science and Engineering, 2021 - Springer
Dams are multipurpose structures that provide water for drinking purposes, hydroelectric
power generation, navigation, industrial uses, and irrigation, in addition to flood control. The …

[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 …

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 …

Free-flow discharge estimation method for Piano Key weir geometries

BM Crookston, RM Anderson, BP Tullis - Journal of Hydro-Environment …, 2018 - Elsevier
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 …

Hydraulics of labyrinth and piano key weirs: 100 years of prototype structures, advancements, and future research needs

BM Crookston, S Erpicum, BP Tullis… - Journal of Hydraulic …, 2019 - ascelibrary.org
Forum papers are thought-provoking opinion pieces or essays founded in fact, sometimes
containing speculation, on a civil engineering topic of general interest and relevance to the …

Numerical investigation of flow characteristics and energy dissipation over piano key and trapezoidal labyrinth weirs under free-flow conditions

T Selim, AK Hamed, M Elkiki, MG Eltarabily - Modeling Earth Systems and …, 2024 - Springer
Piano Key (PK) and trapezoidal labyrinth (TL) weirs are nonlinear control structures suitable
for narrow channels with high discharge by expanding the crest length of the overflow. In …

[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 …

Influence of piano key weir crest shapes on flow characteristics, scale effects, and energy dissipation for in-channel application

X Shen, M Oertel - Journal of Hydraulic Engineering, 2023 - ascelibrary.org
Due to their small footprint and efficient hydraulic performance, piano key weirs (PKWs)
have been gaining growing attention in the past two decades. Besides the primary …

Side weir flow characteristics: comparison of piano key, labyrinth, and linear types

M Karimi, J Attari, M Saneie… - Journal of Hydraulic …, 2018 - ascelibrary.org
Side weirs are widely used to divert a part of the discharge in irrigation channels and sewer
systems. To increase the discharge capacity of linear side weirs at constant length in a …