Bottom Slot Discharge Outlet for Combined Sewer Diversion Structure

Lewis, James W.; Wright, Steven J.; Pribak, Mark; Sherrill, James

doi:10.1061/(asce)hy.1943-7900.0000225

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…Numerous studies have been conducted by different researchers on divert structures. In addition, several researchers such as Ghodsian (2003), Kra and Merkley (2004), Lewis (2011), Granata et al (2013) Azimi et al (2014Azimi et al ( , 2015, Nezami et al (2015), Maranzoni et al (2017) and Karami et al (2018) have carried out some laboratory, analytical and numerical investigations on hydraulic behavior of side weirs. Hussein et al (2010) experimentally studied the parameters affecting the passing discharge through circular sharp-crested side orifices.…”

Section: Introductionmentioning

confidence: 99%

Simulation of discharge coefficient of side weirs placed on convergent canals using modern self-adaptive extreme learning machine

et al. 2020

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Side weirs are broadly used in irrigation channels, drainage systems and sewage disposal canals for controlling and adjusting the flow in main channels. In this study, a new artificial intelligence model entitled "self-adaptive extreme learning machine" (SAELM) is developed for simulating the discharge coefficient of side weirs located upon rectangular channels. Also, the Monte Carlo simulations are implemented for assessing the abilities of the numerical models. It should be noted that the k-fold crossvalidation approach is used for validating the results obtained from the numerical models. Based on the parameters affecting the discharge coefficient, six artificial intelligence models are defined. The examination of the numerical models exhibits that such models simulate the discharge coefficient valued with acceptable accuracy. For instance, mean absolute error and root mean square error for the superior model are computed 0.022 and 0.027, respectively. The best SAELM model predicts the discharge coefficient values in terms of Froude number (F d), ratio of the side weir height to the downstream depth (w/h d), ratio of the channel width at downstream to the downstream depth (b d /h d) and ratio of the side weir length to the downstream depth (L/h d). Based on the sensitivity analysis results, the Froude number of the side weir downstream is identified as the most influencing input parameter. Lastly, a matrix is presented to estimate the discharge coefficient of side weirs on convergent channels.

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Section: Introductionmentioning

confidence: 99%

Simulation of discharge coefficient of side weirs placed on convergent canals using modern self-adaptive extreme learning machine

et al. 2020

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show abstract

“…The flows passing through channels with side orifices are considered to be spatially varied flows with decreasing discharge. Numerous researches and studies have been conducted, namely on the hydraulic specifications of the flow in channels with side orifice by different researchers such as: Panda [1], Tanwar [2], Ramamurthy et al [3,4], Gill [5], Swamee et al [6], Ojha and Subbaiah [7], Oliveto et al [8], Ghodsian [9], Kra and Merkley [10], Prohaska et al [11], Bryant et al [12], Hussain et al [13], Lewis et al [14] who have carried out experimental researches on the behavior of the flow passing through rectangular channels with side orifices. Hussain et al [13] presented an equation which calculated the discharge coefficient of a circular sharp-crested side orifice.…”

Section: Introductionmentioning

confidence: 99%