Results 71 to 80 of about 164 (142)

Experimental Study of Discharge Coefficient at the Dentate Trapezoidal Labyrinth Weir

علوم آب و خاک, 2021
One of the crucial problems that exist in the irrigation networks is the fluctuation of the water surface flow in the main channel and changes in the flow rate of the intake structure.
J. Meshkavati toroujeni, A.A. dehghani, A. ٍEmadi, M. Masoudian   +3 more
doaj  

Performance Evaluation of Artificial Intelligence Models in Estimating the Discharge Coefficient of Labyrinth Weirs with Semicircular Crests [PDF]

Journal of Hydraulic Structures
In this study, the performance of ANN and SVM in estimation of the discharge coefficient of the labyrinth weirs with semicircular crests was investigated. For this purpose, 454 experimental data were used.
Hamed Heydarzadeh, Sarvenaz Asef, Jafar Chabokpour, Reza Norouzi   +3 more
doaj   +1 more source

Toward the accurate estimation of elliptical side orifice discharge coefficient applying two rigorous kernel-based data-intelligence paradigms. [PDF]

Sci Rep, 2021
Karbasi M, Jamei M, Ahmadianfar I, Asadi A.   +3 more
europepmc   +1 more source

Fitting Analysis of Flow Capacity of Labyrinth Weir Basedon the Length Change of Overflow Leading Edge

Renmin Zhujiang, 2020
Even in the mountain valley reservoir, the labyrinth has a large capacity for overflowunder low head conditions, but its flow capacity decreases significantly with the increase ofweir head.
WANG Shangjin, QIU Yong, YANG Zewen, JIAO Xuan, ZHOU Xinyu   +4 more
doaj  

Forecasting of stage-discharge in a non-perennial river using machine learning with gamma test. [PDF]

Heliyon, 2023
Vishwakarma DK, Kuriqi A, Abed SA, Kishore G, Al-Ansari N, Pandey K, Kumar P, Kushwaha NL, Jewel A.   +8 more
europepmc   +1 more source

Effect of the length of the weir wall sections on hydraulic characteristics of labyrinth weir

IOP Conference Series: Earth and Environmental Science
Abstract A labyrinth spillway is a weir to increase the length of the weir wall within a fixed width, by the zig-zag plan shape. The weir wall of the labyrinth spillway consists of upstream, downstream, and sidewall. To increase the performance, it is good to modifications of the length of the weir wall of the spillway.
A Tanga, M G Ishak, S R Oktavia, Y Arafat   +3 more
openaire   +1 more source

Flow Characteristics of Arced Labyrinth Weirs

, 2012
The need to accommodate larger reservoir discharge events has prompted the improvement or replacement of existing spillways. One possible spillway modification is the use of an in-reservoir arced labyrinth weir in place of a linear weir. Arced labyrinth weirs can increase crest length (more cycles) and have improved hydraulic efficiency in non ...
openaire   +2 more sources

Experimental study of hydraulic losses in linear and nonlinear weirs: A comparative analysis

Water Science
With increased length of the crest in a certain width range, the labyrinth weirs increase the discharge capacity. In this study, a laboratory flume was used with a length of 8 m and a width and height of 0.6 m, in which the hydraulic loss of linear/non ...
Reza Ghasemi Ghasemvand, Mohammad Heidarnejad, Alireza Masjedi, Amin Bordbar   +3 more
doaj   +1 more source

Effect of Flow Splitters on Energy Loss in C-Type Piano Key Weirs

Journal of Engineering and Sustainable Development
Piano key weirs (PKWs) are a new type of labyrinth weirs. They have a longer crest length within a limited width and, unlike linear weirs, ultimately have a higher discharge coefficient. The higher energy loss in PKWs can reduce scour.
Amirhossein Fathi, Wadi Mohammed Wadi, Ali Khoshfetrat, Seyed Hamid Alavi   +3 more
doaj   +1 more source

Nappe oscillations on free-overfall structures, data from laboratory experiments. [PDF]

Sci Data, 2020
Lodomez M, Tullis B, Archambeau P, Kitsikoudis V, Pirotton M, Dewals B, Erpicum S.   +6 more
europepmc   +1 more source