Results 21 to 30 of about 300 (179)

Prediction of scour downstream of triangular labyrinth weirs

open access: yesAlexandria Engineering Journal, 2020
Estimation and control of local scouring downstream hydraulic structures is an important aspect for designing hydraulic structures. Lack predicting of local scouring can cause endangered hydraulic structures.
Eman Aly Elnikhely, Ismail Fathy
doaj   +1 more source

Experimental Study of Discharge Coefficient at the Dentate Trapezoidal Labyrinth Weir

open access: yesعلوم 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   +3 more
doaj  

Experimental and numerical study the effect of flow splitters on trapezoidal and triangular labyrinth weirs

open access: yesWater Science, 2023
Nonlinear weirs are among the major structures used in water transfer. Thus, these structures have been the subject of various studies. This study investigates the effect of flow splitters on discharge performance of trapezoidal and triangular labyrinth ...
Ghasem Aghashirmohammadi   +3 more
doaj   +1 more source

Sensitizing influenced factors on discharge of labyrinth weirs using ANFIS model [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2020
In the article, through the adaptive neuro-fuzzy inference system (ANFIS), a sensitivity analysis is conducted on the variables affecting the discharge capacity of the weir.
Mohammad Ali Izadbakhsh, Reza Hajiabadi
doaj   +1 more source

Experimental Study of Discharge Coefficient of Symmetric and Asymmetric Rectangular Labyrinth Weirs

open access: yesعلوم آب و خاک, 2022
The discharge coefficient of labyrinth weirs increases with increasing the crest length in a certain width range. The present research was carried out in a laboratory flume with a length of 8 m, a width of 0.6 m, and a height of 0.6 m.
H. Elahifar   +3 more
doaj  

Oxygen Transfer at Labyrinth Weirs

open access: yesJournal of Japan Society on Water Environment, 2004
It is well known that oxygen transfer in an irrigation and drainage system occurs on the flow surface by reaeration as agricultural water flows down the waterway, and that water management structures, such as drops or weirs, largely improve this oxygen transfer.
TAKAKI, Kyoji   +2 more
openaire   +2 more sources

Influence of The Number of Trapezoidal Labyrinth Weir Cycles on The Hydraulic Characteristics of The Weir

open access: yesIOP Conference Series: Earth and Environmental Science, 2023
Abstract The labyrinth weir that is viewed from above has a zig-zag shape. The main objective is to extend the spillway so that the water level upstream of the weir is as low as possible or to increase the discharge capacity. The shapes of labyrinth weirs based upon cycle shape are triangular, trapezoidal, and rectangular.
N B Rustiati   +3 more
openaire   +1 more source

Numerical investigation of labyrinth-shaft spillway

open access: yesApplied Water Science, 2023
In the present study, a new type of hybrid spillway termed labyrinth-shaft spillway was introduced to improve the discharge capacity and efficiency of the spillway.
M. Cihan Aydin, Ali Emre Ulu
doaj   +1 more source

Effects of Nose and Piano Keys Weir Parapet Wall on Floating Woody Debris [PDF]

open access: yesعلوم و مهندسی آبیاری, 2017
A hydraulic structure is a device designed to retain, regulate, or control the flow of water. The most common type of hydraulic structures are weirs. Weirs are overflow structures that stretch across an open channel of water, and are meant to alter the ...
Majid Rahimpour   +2 more
doaj   +1 more source

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

open access: yesRenmin 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   +4 more
doaj  

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