Zobrazeno 1 - 10
of 260
pro vyhledávání: '"piano key weir"'
Autor:
Alghazali Najm O. S., Musa Taghreed A.
Publikováno v:
Open Engineering, Vol 14, Iss 1, Pp 144-9 (2024)
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. Due to the fact that the PKW is a modern, newly ins
Externí odkaz:
https://doaj.org/article/e5441545e0fb4dd2b3fde7d5bb6dcbc6
Publikováno v:
Applied Water Science, Vol 14, Iss 12, Pp 1-17 (2024)
Abstract This study investigates the effectiveness of flow splitters in reducing scour downstream of trapezoidal Piano Key Weirs through a comprehensive experimental study. Three distinct geometries of flow splitters—square, rectangular, and circul
Externí odkaz:
https://doaj.org/article/2ffaa4c53f384a72b199719723fa8b4b
Autor:
A. Khoshfetrat, Y. Neamah Abdulhasan
Publikováno v:
علوم آب و خاک, Vol 28, Iss 3, Pp 73-83 (2024)
Piano key weirs are a type of non-linear weir that have a higher discharge coefficient than similar linear weirs. These hydraulic structures have a lightweight foundation and a simple structure is designed and installed on dams and drainage channels.
Externí odkaz:
https://doaj.org/article/244f21984d3741e3bc4e390cbf033a18
Publikováno v:
AIMS Environmental Science, Vol 11, Iss 5, Pp 723-740 (2024)
Nowadays, piano key (PK) weir with an expanded crest length are often used to deal with surplus discharge in dams due to unexpected climate change effects, increasing safety. The present study deals with the numerical modelling of a group of PK weirs
Externí odkaz:
https://doaj.org/article/b607b196371e453b8b3a2384f18adca6
Publikováno v:
Results in Engineering, Vol 24, Iss , Pp 103173- (2024)
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. This study experimen
Externí odkaz:
https://doaj.org/article/71e8ab9ae3c2404b9bd64bf6fee050b8
Autor:
Mujahid Iqbal, Usman Ghani
Publikováno v:
Journal of Hydroinformatics, Vol 26, Iss 5, Pp 1167-1188 (2024)
The discharge capacity of the piano key weir (PKW) is an important flow feature which ultimately decides the design of PKWs. In the present research work, the different architecture of artificial neural networks (ANNs) was employed to predict the dis
Externí odkaz:
https://doaj.org/article/9a394bfd9e0b464689c61b3819244c7f
Autor:
Taghreed A. Musa, Najm O.S. Alghazali
Publikováno v:
Journal of Engineering and Sustainable Development, Vol 28, Iss 5 (2024)
Weirs are hydraulic constructions typically employed in dam spillways and channel control structures. The shape and size of the crest will determine whether the weir is linear or non-linear. Of the two types, non-linear weirs are often selected due t
Externí odkaz:
https://doaj.org/article/0c513202e75e4878a4e24e8cdb24434b
Publikováno v:
In Results in Engineering December 2024 24
Publikováno v:
Journal of Hydrology and Hydromechanics, Vol 72, Iss 1, Pp 34-48 (2024)
In this paper, the scour downstream of a trapezoidal Piano key weir (PKW) is investigated under free and submerged flow conditions. For this purpose, an experimental model was used in a laboratory channel with a length of 10 m, width of 0.75 m, and h
Externí odkaz:
https://doaj.org/article/2da85a29c23b4202aba069a62b39130f
Autor:
Adel Edalati, Ramin Amini
Publikováno v:
Journal of Hydraulic and Water Engineering, Vol 1, Iss 2, Pp 105-136 (2024)
Weir is one of the most common man-made hydraulic structures that are used to measure the flow in canals, store water, and control floods. The piano key weir (PKW) is a type of non-linear weir and is considered one of the best hydraulic-economical op
Externí odkaz:
https://doaj.org/article/ff398898d4d841a38163ed0ae3feefb4