Results 221 to 230 of about 2,783 (246)

Flow Over Side Weirs in Circular Channels

Journal of Hydraulic Engineering, 1985
Theoretical and experimental investigations of the flow over sharpedged side weirs in circular channels are reported.
Ali Uyumaz, Yilmaz Muslu
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Geometrically simple linear weirs using circular quadrants - bell mouth weirs

Journal of Hydraulic Research, 1991
A detailed theoretical analysis of flow through a quadrant plate weir is made in the light of the generalized theory of proportional weirs, using a numerical optimization procedure. It is shown that the flow through the quadrant plate weir has a linear discharge-head relationship valid for certain ranges of head. It is shown that the weir is associated
K. Keshava Murthy, D. P. Giridhar
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Flow Through Circular Weirs

Journal of the Hydraulics Division, 1957
Formula is presented for theoretical flow through sharp crested circular weirs which involves use of elliptic functions; tables appended give summary of available experimental data with discharge coefficients, flow through weirs of various diameters based on these coefficients and values of elliptic functions involved by which flow through circular ...
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Experimental modeling of circular labyrinth weirs with different weir heights and configurations

2022
Due to their zigzag geometry in plain view, labyrinth weirs require less crest length compared to linear weirs in the dam body or in the channels where they are placed. In this study, the effect of the number of cycles (N) and weir heights (P) of the semi-circular labyrinth weirs on the flow efficiency was investigated.
YILDIZ, Ali, MARTI, Ali İhsan, GÖĞÜŞ, Mustafa   +2 more
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Flow over circular weirs in a centrifugal field

The Canadian Journal of Chemical Engineering, 1980
Liquid height over a circular weir in a cenrifugal field has been measured as a function of the flow over the weir for baffle configurations of great practical importance in the design of centrifugal contractors for solvent extraction. An existing correlation was tested and extended so that it can now be used for both baffle designs.
R. A. Leonard, R. H. Pelto, A. A. Ziegler, G. J. Bernstein   +3 more
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Discharge Coefficient of Rectangular Side Weirs on Circular Channels

International Journal of Nonlinear Sciences and Numerical Simulation, 2016
AbstractIn this study, the flow turbulence and variations of the supercritical free surface flow in a circular channel along a side weir are simulated as three dimensional using the RNGk-εturbulence model and volume of fluid (VOF) scheme. Comparison between the numerical model and experimental measurements shows that the numerical model simulates the ...
Hamed Azimi, Saeid Shabanlou, Isa Ebtehaj, Hossein Bonakdari   +3 more
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RBC broad-crested weirs for circular sewers and pipes

Journal of Hydrology, 1984
Abstract In recent years, significant advancements have been made in the practical application of long-throated flumes and broad-crested weirs for flow measurements in irrigation canals. The modified RBC (Replogle-Bos-Clemmens) broad-crested weir has many advantages over related open-channel flow devices.
A.J. Clemmens, M.G. Bos, J.A. Replogle
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Sharp-crested weir located at the end of a circular channel

Proceedings of the Institution of Civil Engineers - Water Management, 2017
Sharp-crested weirs are frequently used for discharge measurements in open channels. They offer a simple, reliable and accurate flow measurement approach if they are properly installed and maintained. Suppressed weirs can be installed in channels with different shapes. The standard suppressed rectangular weir is well documented in the literature.
Ali R. Vatankhah, Somayeh Khalili
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Supercritical Flow in Circular‐Shaped Side Weir

Journal of Irrigation and Drainage Engineering, 1994
The flow features of a side weir in a prismatic circular‐shaped channel as used in sewage and irrigation systems are considered. The complex cross‐sectional channel geometry is simplified, and a generalized de Marchi equation is presented for the free‐surface profile.
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Flow measurement using circular sharp-crested weirs

Flow Measurement and Instrumentation, 2010
Abstract Circular sharp-crested weirs are used as a flow-measuring device in open channels, reservoirs or tanks. The theoretical discharge equation of a circular thin weir ends up the complete elliptic integrals of the first and second kinds that are not very suitable for practical purposes due to their complexity. No simple and accurate equation
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