Results 61 to 70 of about 135 (128)

Hydraulic Investigation of Piano Key Weir

Reviews in Agricultural Science, 2020
Anh Tuan, Le, Hiramatsu, Ken
openaire   +2 more sources

Experimental Study of Flow over the Triangular Side Weir with Inclined Crest in Subcritical Flow [PDF]

علوم آب و خاک
Side weirs are hydraulic structures employed in irrigation and drainage channels as diversion devices or head regulators. The increasing efficiency of the structure of side weirs for constant head has been one of the concerns of researchers in the last ...
M. Neisi, M. Sajadi, M. Shafai Bejestan, J. Ahadiyan   +3 more
doaj  

Influence of outlet keys slope on downstream bed topography in trapezoidal piano key weirs: An experimental investigation

Results in Engineering
Assessing scour depth downstream of piano key weirs (PKWs) is crucial for maintaining their structural integrity. The slope of the outlet keys significantly influences flow velocity and the associated risk of downstream scouring.
Chonoor Abdi Chooplou, Masoud Ghodsian, Mohammad Vaghefi   +2 more
doaj   +1 more source

Flow profiles and hydraulic behavior of rectangular piano key weirs: effect of sloping crest and orientation across different scales

Results in Engineering
Piano Key Weirs (PKWs), renowned for their enhanced discharge capacity within a compact footprint, represent a significant advancement in hydraulic engineering.
Hossein Sohrabzadeh Anzani, Masoud Ghodsian, Sameh Ahmed Kantoush   +2 more
doaj   +1 more source

Comparison of Hydraulic Performance of Linear and Nonlinear Piano-Key Weirs in Plan

علوم آب و خاک, 2019
In this research, by using FLOW3D, the performance of non-linear (arced) piano key (PKW-NL) in plan and linear piano key weir (PKW-L), with equal length of weir, was compared.
A. Rezaei Ahvanooei, H. Karami, F. Mousavi   +2 more
doaj  

Scour evolution for steady and unsteady flow conditions downstream of Type A piano key weirs

Journal of Hydrology and Hydromechanics
For the first time a comprehensive analysis for steady and unsteady flow conditions was performed of timedependent scour processes in non-cohesive sediment downstream of a Type A piano key weir.
Panthi Manisha, Crookston Brian Mark, Palermo Michele   +2 more
doaj   +1 more source

Non-cohesive sediment cleaning patterns and processes upstream of a Type A piano key weir for steady and unsteady flow conditions

Journal of Hydrology and Hydromechanics
The piano key weir has been used in channel and spillway rehabilitation projects due to their compact footprint, hydraulic efficiency and cost-effectiveness.
Panthi Manisha, Crookston Brian M.
doaj   +1 more source

Discharge Characteristics of Piano Key Side Weirs

Side weirs are important hydraulic structures that divert discharge from a primary channel to a diversion channel. Most of the studies carried out so far focus on linear rectangular and labyrinth side weirs. Sparse work has been performed on the piano key side weir. In this paper, a Computational Fluid Dynamics (CFD) based numerical study was conducted
Hussain, Sabir, Shariq, Ali, Ahmad, Zulfequar   +2 more
openaire   +2 more sources

A comparative analysis of the energy dissipation efficiency of various piano key weir types

Open Engineering
Water levels in main or sub-channels can be controlled and regulated with the help of weirs. Piano key weirs (PKWs), a type of non-linear weir, include side crests, as well as front and back crests.
Alghazali Najm O. S., Musa Taghreed A.
doaj   +1 more source

Modified discharge capacity calculation method for piano key weirs

Water Science & Technology
ABSTRACT Due to the numerous geometric parameters and complex hydraulic behaviors of piano key weirs (PKWs), accurately estimating their discharge capacity remains challenging without in-depth experimental studies or computational modeling. This study compares and analyzes recent discharge equations and develops new relationships between
Zhiqi Cheng, QianKe Xu, Xiaolong He
openaire   +2 more sources