Results 21 to 30 of about 104,201 (166)

Effect of Channel Slope on Discharge Coefficient of Cylindrical Crested Weirs [PDF]

open access: yesEngineering and Technology Journal, 2013
This research paper investigates the effect of the longitudinal channel slope on the discharge coefficient of cylindrical weirs. The methodology applied is by adopting three different diameters of the cylindrical weir and at three different slopes of the
Mohammed Tareq Khaleel
doaj   +1 more source

Determination of discharge coefficient in the tilted crown sharp-crested weirs [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2022
In this study, the performance of vertical and tilted crown weirs with different angles of the weir crest across the flow has been investigated using numerical and experimental models.
Salma Ajeel Fenjan   +2 more
doaj   +1 more source

Coefficient of Discharge of the Piston Valve

open access: yesTransactions of the Japan Society of Mechanical Engineers, 1954
By the use of oil, the present authors have determined the coefficients of discharge, C, of the piston valves with a single hole, and have obtained an experimental formula, where C is represented as a function of hole diameter, d (mm), and of opening ratio of the hole, m.
ITAYA, Shoju, TSUJI, Shigeru
openaire   +2 more sources

Discharge coefficient of a rectangular sharp-edged broad-crested weir

open access: yesJournal of Hydrology and Hydromechanics, 2014
This paper is concerned with the determination of the relationship for the calculation of the discharge coefficient at free overflow over a rectangular sharp-edged broad-crested weir without lateral contraction. The determination was made on the basis of
Zachoval Zbyněk   +4 more
doaj   +1 more source

The effect of crest shape on discharge coefficient at linear weirs

open access: yesGrađevinar, 2023
A detailed experimental laboratory analysis of the effect of crest shape on the discharge coefficient of sharp-crested weirs is presented in the paper. The experiments were conducted for four different crest shapes. The experiments and analyses show that
Yusuf Dogan, Nihat Kaya
doaj   +1 more source

Flow rate measurement in gravity irrigation systems using sluice gates

open access: yesAgrociencia Uruguay
Gates are used to divert water to rice production plots in eastern Uruguay. In this study, the operating curves of rectangular gates installed at the entrance of circular section pipes are determined for submerged discharge conditions, which can be also ...
Lisette Bentancor, Francisco Pedocchi
doaj   +1 more source

Temporal variation in discharge coefficients of non-point source pollution and its determinants in river-network areas in a plain

open access: yesGuan'gai paishui xuebao
【Objective】 Discharge coefficient is a coefficient describing the discharge of non-point source pollution to water bodies. It is affected by many biotic and abiotic factors.
DUANMU Jiayao   +9 more
doaj   +1 more source

PENGARUH SUDUT NOZZLE TERHADAP PERMANENT PRESSURE DROP AND DISCHARGE COEFFICIENT PADA NOZZLE FLOW METER

open access: yesTeknika, 2014
Nozzle flow metermerupakan salah satu alat ukur aliran berbasis perbedaan tekananyang banyak digunakan dalam dunia industridimana aliran dihitung didasarkan pada persamaan Bernoulli dengan menghitung pressure dropyang terjadi pada aliran yang melewati ...
Ainul Ghurri, SPG Gunawan Tista
doaj   +1 more source

Boosting ensembles for estimation of discharge coefficient and through flow discharge in broad-crested gabion weirs

open access: yesApplied Water Science, 2022
Gabion weirs are environment-friendly structures widely used for irrigation and drainage network purposes. These structures' hydraulic performance is fundamentally different from solid weirs' due to their porosity and the existence of a through-flow ...
Aliasghar Azma   +6 more
doaj   +1 more source

Discharge coefficients for ogee spillways

open access: yesWater Supply, 2022
Abstract Discharge over an ogee weir is related to the length of the weir, upstream total head above the weir crest and the discharge coefficient. The discharge coefficient is influenced by several factors; in this study, some parameters that influence discharge coefficients of ogee weirs are investigated. These factors include: the weir
Farzin Salmasi, John Abraham
openaire   +2 more sources

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