Investigation of discharge coefficient of trapezoidal labyrinth weirs using artificial neural networks and support vector machines

R Norouzi, R Daneshfaraz, A Ghaderi - Applied Water Science, 2019 - Springer
Weirs are a commonly used system to adjust water surface level and to control the flow in
canals and hydraulic structures. Labyrinth weirs are a type of weirs that can pass through a …

Efficient method using Whale Optimization Algorithm for reliability-based design optimization of labyrinth spillway

J Jafari-Asl, MEAB Seghier, S Ohadi… - Applied Soft Computing, 2021 - Elsevier
Spillways are essential parts of dams, in which the main task of these structures is to allow
the passing of excess water and floods from the upstream to the downstream. In this regards …

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 …

Experimental and CFD analysis of circular labyrinth weirs

O Bilhan, MC Aydin, ME Emiroglu… - Journal of Irrigation and …, 2018 - ascelibrary.org
Labyrinth weirs present an effective solution for high discharge efficiency in space-restrictive
situations. However, these weirs exhibit negative effects (vibrations, noise, and instability) …

A review of hydraulic performance and design methods of labyrinth weirs

AK Idrees, R Al-Ameri - Water Supply, 2022 - iwaponline.com
Labyrinth weirs are complex hydraulic structures. They have been widely used as a water
regulator and to increase discharge in channels and spillway dams. Labyrinth weirs are an …

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 …

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 …

Optimal design of labyrinth spillways using meta-heuristic algorithms

K Hosseini, EJ Nodoushan, R Barati… - KSCE Journal of Civil …, 2016 - Springer
The labyrinth spillway continues to be a popular type of the control structures. The focus of
the present study is that on the optimization of the shape of the labyrinth spillway through the …

Physical and numerical modeling of large headwater ratios for a 15 labyrinth spillway

BM Savage, BM Crookston… - Journal of Hydraulic …, 2016 - ascelibrary.org
Current hydraulic design/analysis literature for labyrinth weirs is limited to headwater ratio
(total upstream head/height of weir) values less than 1.0. This study utilized physical and …

Hydraulic design and analysis of labyrinth weirs. II: Nappe aeration, instability, and vibration

BM Crookston, BP Tullis - Journal of irrigation and drainage …, 2013 - ascelibrary.org
Nappe behavior should be considered in the design of labyrinth weirs to ensure hydraulic
optimization and to account for potential vibrations, pressure fluctuations, noise, and flow …