Discharging capacity of rectangular side weirs in straight open channels

Emiroğlu, M. Emin; Agaccioglu, Hayrullah; Kaya, Nihat

doi:10.1016/j.flowmeasinst.2011.04.003

Cited by 103 publications

(77 citation statements)

References 20 publications

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“…The data sets presented by Emiroglu et al [22] and Bagheri et al [24] were used in this study. Emiroglu et al [22] conducted their experiments in the hydraulics laboratory at Firat University, Elazig, Turkey.…”

Section: Data Usedmentioning

confidence: 99%

“…Yüksel [15] examined the effect of the specific energy variation on a lateral weir in a rectangular conduit. Khorchani and Blanpain [16], Ramamurthy et al [17], Huagao et al [18], Venutelli [19], Vatankhah and Bijankhan [20], Emiroglu et al [21,22] and Castro-Orgaz and Hager [23] formulated different equations for calculating the side weir discharge coefficient. They obtained the side weir discharge coefficient as a function of the ratio of the head above the weir to the side weir's sill height and Froude number.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gene expression programming to predict the discharge coefficient in rectangular side weirs

Ebtehaj

Bonakdari

Zaji

et al. 2015

Applied Soft Computing

120

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Section: Data Usedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gene expression programming to predict the discharge coefficient in rectangular side weirs

Ebtehaj

Bonakdari

Zaji

et al. 2015

Applied Soft Computing

120

View full text Add to dashboard Cite

“…For most researches the presumption is used that, the flow at the channel centre is more stable than at the bank of the weir. Thus, the data at the upstream end of the side weir at the channel centre had been used by them [1,27,28,9,8,10]. However, in this study water profile in both of the centre line (line 1 in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Table 2 illustrate the sketch of each type of recent side weirs presented in the literature. (9) [29] C M ¼ 0:71 À 0:41F 1 À 0:22w=y 1 (10) [15] C M ¼ 0:7 À 0:48F 1 À 0:3w=y 1 þ 0:06L=B (11) [1]…”

Section: Introductionmentioning

confidence: 99%

Discharge coefficient for trapezoidal side weir

Nezami

Farsadizadeh

Nekooie

2015

Alexandria Engineering Journal

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The designed length of the rectangular side weirs sometimes becomes too long that makes it non-practical from the engineering point of view. In order to decrease the length of channel opening with the desired water height, this study focuses on applying trapezoidal geometry for side weirs. The discharge coefficient needs to be found experimentally for any kinds of trapezoidal side weirs. For this study experimental tests have been carried out for trapezoidal side weir in order to obtain the discharge coefficient. The main dimensionless variables for the tests include: Upstream end Froude number (F 1 ), w/y 1 , L/B, L 0 /L, w/L 0 and sin (a). Finally, the relationship for DeMarchi's coefficient in subcritical flow for trapezoidal side weir is presented based on the nondimensional parameters of weir and flow. Eventually, all the data points are within ±10% limit, which shows the accuracy of the results of this study. ª 2015 Production and hosting by Elsevier B.V. on behalf of Faculty of Engineering, Alexandria University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).

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“…When the influence of other parameters (e.g. geometry) frequently applied by various authors (Aghayari et al, 2009;Borghei et al, 1999;Emiroglu et al, 2011;Honar and Javan, 2007) was studied, they were found to be of much smaller importance. The resulting functional dependence is The discharge coefficient C DT was calculated from Eq.…”

Section: Discharge Coefficients Of Horizontal and Inclined Sectionsmentioning

confidence: 95%

Flow characteristics at trapezoidal broad-crested side weir

Říha

Zachoval

2015

Journal of Hydrology and Hydromechanics

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Broad-crested side weirs have been the subject of numerous hydraulic studies; however, the flow field at the weir crest and in front of the weir in the approach channel still has not been fully described. Also, the discharge coefficient of broad-crested side weirs, whether slightly inclined towards the stream or lateral, still has yet to be clearly determined. Experimental research was carried out to describe the flow characteristics at low Froude numbers in the approach flow channel for various combinations of in-and overflow discharges. Three side weir types with different oblique angles were studied. Their flow characteristics and discharge coefficients were analyzed and assessed based on the results obtained from extensive measurements performed on a hydraulic model. The empirical relation between the angle of side weir obliqueness, Froude numbers in the up-and downstream channels, and the coefficient of obliqueness was derived.

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Discharging capacity of rectangular side weirs in straight open channels

Cited by 103 publications

References 20 publications

Gene expression programming to predict the discharge coefficient in rectangular side weirs

Gene expression programming to predict the discharge coefficient in rectangular side weirs

Discharge coefficient for trapezoidal side weir

Flow characteristics at trapezoidal broad-crested side weir

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