Results 31 to 40 of about 390,601 (208)

The effect of crest shape on discharge coefficient at linear weirs

Građevinar, 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

Design and Experiment of an Electric Control Spiral-Pushing Feed Mechanism for Field Fertilizer Applicator

Applied Sciences, 2023
Due to the unique structural characteristics of the traditional spiral fertilizer applicator, the instantaneous filling coefficient cannot be determined, which is not conducive to achieving precise control of the fertilizer discharge rate.
Guoqiang Dun, Xingpeng Wu, Xinxin Ji, Yuhan Wei   +3 more
doaj   +1 more source

Flow rate measurement in gravity irrigation systems using sluice gates

Agrociencia 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

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

Teknika, 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

Applied 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, Mohammad Tavakol Sadrabadi, Yakun Liu, Masoumeh Azma, Di Zhang, Ze Cao, Zhuoyue Li   +6 more
doaj   +1 more source

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

Guan'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, CHEN Cheng, CHEN Xiaohua, SHEN Genxiang, ZHANG Min, GUO Chunxia, WANG Zhenqi, BAI Yujie, LING Zhixiong, CAO Guomin   +9 more
doaj   +1 more source

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

Teknika, 2015
PENGARUH SUDUT NOZZLE TERHADAP PERMANENT PRESSURE DROP AND DISCHARGE COEFFICIENT PADA NOZZLE FLOW ...
Ainul Ghurri, SPG Gunawan Tista
doaj   +1 more source

Quantifying Factors Affecting Sidewall Air Inlet Performance [PDF]

, 2000
A generalized sidewall air inlet (SWAI) was designed based on past research (Wu et al., 1994; Hoff et al., 1994). Research was conducted on this SWAI design to evaluate volumetric flow rate as a function of inlet height, opening height, hood design ...
Hoff, Steven, Hoff, Steven, Oberreuter, Mark   +2 more
core   +4 more sources

Massive Dirac particles on the background of charged de-Sitter black hole manifolds [PDF]

, 2009
We consider the behavior of massive Dirac fields on the background of a charged de-Sitter black hole. All black hole geometries are taken into account, including the Reissner-Nordstr\"{o}m-de-Sitter one, the Nariai case and the ultracold case.
B. Thaller, D. B. Hinton, F. Belgiorno, J. Weidmann, M. S. P. Eastham, S. L. Cacciatori, S. P. Kim, T. Damour, W. Pauli   +8 more
core   +2 more sources

Comparative Study of the Discharge Coefficient of Streamlined Weirs [PDF]

Journal of Hydraulic and Water Engineering
Nowadays, streamlined weirs including circular crested weirs and hydrofoil weirs have been introduced as the weirs with high discharge coefficient (Cd).
Abbas Parsaie, AmirHamzeh Haghiabi, Ehsan Afaridegan   +2 more
doaj   +1 more source