Results 11 to 20 of about 2,783 (246)
علوم آب و خاک, 2022 A compound sharp-crested weir is often used to measure a wide range of flows with appropriate accuracy in open channels. In this study, experiments were performed to investigate the hydraulic flow through a compound weir of circular-rectangular with ...
M. sabouri, A.R. Emadi, R. Fazloula
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Numerical investigation on the hydraulic parameters’ effects on the circular-crested weir [PDF]
Journal of Hydraulic StructuresA paramount determinant in the selection of irrigation canal overflow configurations resides in their flow conveyance capacity. This overflow capacity is contingent upon the effective length and geometric characteristics of the weir.
Mahdi Majedi-Asl +4 more
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Numerical Study on Passing Flow Through Circular Channels with Side [PDF]
مهندسی منابع آب, 2017 Side weir is used as a slot in the side of main channel to direct excess flows that are above the weir crest. Such structures are used in control of flow level in irrigation, drainage networks and urban sewage disposal systems.
Hamed Azimi, Saeid Shabanlou
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Journal of HydroinformaticsIn this study, a support vector machine (SVM) and three optimization algorithms are used to develop a discharge coefficient (Cd) prediction model for the semi-circular side weir (SCSW).
Shanshan Li +4 more
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Modified theoretical stage-discharge relation for circular sharp-crested weirs
Water Science and Engineering, 2012 A circular sharp-crested weir is a circular control section used for measuring flow in open channels, reservoirs, and tanks. As flow measuring devices in open channels, these weirs are placed perpendicular to the sides and bottoms of straight-approach ...
Rasool Ghobadian, Ensiyeh Meratifashi
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Discharge Estimation of Circular Sewer Using Combined Device of Weir-Sluice Gate [PDF]
آب و فاضلاب, 2005 Due to space constraints any access to a buried sewer conduit is seriously limited. In order to install the flow measurement devices, the space of manholes are the most appropriate places in a conduit.
Mahmoud F. Maghrebi +1 more
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Flow Over Side Weirs in Rectangular and Circular Channels
Water Science and Technology, 1988 Flow over side weirs in rectangular and circular channels is discussed. Numerical models are obtained from energy principles and are solved by a finite difference method. The results are presented in diagrammatic form for practical use. It is shown that rectangular channel side weir procedures cannot be used for obtaining approximate water surface ...
A. Uyumaz
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Hydraulics of clear and submerged overfall weirs with bottom circular-openings
Ain Shams Engineering Journal, 2010 AbstractMany standard weirs in Fayoum district (Egypt) have been perforated by 1, 2 or 3 pipes, to convey much water in the downstream direction. Measurements of discharge with these structures are complicated due to existence of the openings. In this research, an experimental study was carried out to investigate the flow over clear over fall weir with
Mohamed, Hassan I. +2 more
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Effects of flow splitters on local scour downstream of type-A trapezoidal piano key weir
Applied Water ScienceThis 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 circular—are examined
Sara Kazerooni +2 more
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Effect of a Weir-Type Obstruction with Different Geometric and Hydraulic Conditions on Flow Structure in an Open Channel [PDF]
Mehran University Research Journal of Engineering and Technology, 2014 This paper presents results from an experimental study which was conducted at Technical University Delft, Netherland. The research was made on obstructions resembling weirs in an open channel.
Shahid Ali, Usman Ghani, Abid Latif
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