Results 61 to 70 of about 164 (142)

A Numerical Investigation on Residual Energy of Labyrinth Weirs

open access: yes, 2023
The replacement of existing classical weirs with labyrinth weirs is a proven techno-economical solution and a means to increase the discharge capacity when rehabilitating existing structures. However, flows exiting a labyrinth weir are complex, three-dimensional, and aerated; additional information is needed regarding energy dissipated by such weirs ...
Langohr, P.   +2 more
openaire   +2 more sources

Dimensional analysis and stage-discharge relationship for weirs: a review

open access: yesJournal of Agricultural Engineering, 2017
Deducing the weir flow stage-discharge relationship is a classical hydraulic problem. In this regard Buckingham’s theorem of dimensional analysis can be used to find simple and accurate formulas to obtain the rating curves of different weir types.
Mohammad Bijankhan, Vito Ferro
doaj   +1 more source

The performance of labyrinth weirs [PDF]

open access: yes, 1968
The purpose of the labyrinth weir is to increase the discharge per unit length of structure normally obtained from a conventional weir when operating under identical head conditions. This is achieved by compressing a large length of crest in concertina form, into the space available on site.
openaire   +1 more source

Investigating the Hydraulic Efficiency of the Labyrinth Weir Using the Flow3D Numerical Method [PDF]

open access: yesعلوم آب و خاک
Weirs play a crucial role in flood management and dam safety, accounting for a significant portion of the construction costs of dams. The selection of floods with long return periods for flood design is of utmost importance.
R. Daneshfaraz   +2 more
doaj  

Laboratory and Numerical Study of Hydraulic Loss and Discharge Coefficient in Rectangular Labyrinth and Piano Key Weirs [PDF]

open access: yesعلوم آب و خاک
the impact of hydraulic loss on the performance of weirs should not be overlooked. In this study, a laboratory flume measuring 8 meters in length, 0.6 meters in width, and 0.6 meters in height was used to investigate the hydraulic loss of the weirs and ...
R. Ghasemi Ghasemvand   +3 more
doaj  

Multiple analysis approach for the design of the labyrinth spillway on the Nam Teng river, Myanmar: Concept design - CFD - physical model

open access: yesE3S Web of Conferences, 2018
This paper presents the results of a combined approach - concept design, Computational Fluid Dynamics (CFD) simulations and physical model test - to design a spillway on the Nam Teng River in Myanmar.
Bigillon Françoise   +2 more
doaj   +1 more source

Geometric and Hydraulic Properties of Arced Labyrinth Weirs

open access: yesInternational Journal of Current Engineering and Technology, 2022
Weirs serve a critical role in dam safety. Numerous reservoirs' flood projections used in hydraulic design have risen in magnitude in recent years. As a result, many current spillways are no longer adequate since they do not fulfill current discharge capacity standards. Labyrinth weirs are frequently used to rehabilitate existing fixed width spillways.
openaire   +1 more source

Application of Intelligent Models in Investigating the Energy Dissipation in Labyrinth Weirs with Various Cycles Form [PDF]

open access: yesJournal of Hydraulic Structures
Weirs play a crucial role as hydraulic structures in the regulation and control of water flow. This study investigates the relative energy dissipation in labyrinth weirs, examining various configurations, scales, and cycle types, using advanced ...
Hamidreza Abbaszadeh   +2 more
doaj   +1 more source

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