Hydraulic characteristics and discharge control of sluice gates

Yen, Jung‐Fu; Lin, Chien-Chih; Tsai, Chen‐An

doi:10.1080/02533839.2001.9670628

Cited by 22 publications

(9 citation statements)

References 10 publications

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“…In this case, Belaud et al (2009) used the energy-momentum balance (EMB) to show that C c should change drastically, resulting in almost no contraction when the gate lip just touches the free surface if subcritical flow is considered. The EMB is a promising approach to compute the discharge (Clemmens et al 2003), but it requires correction coefficients and adjusted C c (Yen et al 2001;Lozano et al 2009;Castro-Orgaz et al 2010). For this, a need exists to investigate the flow structure to quantify the head losses attributable to viscosity and turbulence, and to evaluate the momentum and energy coefficients.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Flow under Sluice Gates

Cassan

Belaud²

2012

J. Hydraul. Eng.

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The flow characteristics upstream and downstream of sluice gates are studied experimentally and numerically using Reynolds averaged Navier-Stokes two-dimensional simulations with a volume of fluid method. Special attention was brought to large opening and submergence, a frequent situation in distribution canals that is little seldom addressed in the literature. Experimental results obtained by ADV measurements provide mean velocity distributions and turbulence characteristics. The flow is shown to be mostly two-dimensional. Velocity fields were simulated using renormalization group k-epsilon and Reynolds stress model turbulence models, leading to an estimation of energy and momentum correction coefficients, head loss, and bed friction. The contraction coefficient is also shown to increase with gate opening at large submergence, which is consistent with the energy-momentum balance. This result can be used to derive accurate discharge equations.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Flow under Sluice Gates

Cassan

Belaud²

2012

J. Hydraul. Eng.

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“…Numerous formulations can be found in literature for each of these structures (e.g. Henderson, 1966;Liggett and Cunge, 1975;Swamee, 1992;Yen et al, 2001). This study uses the discharge equations implemented in the full hydrodynamic InfoWorks RS software, which were either derived and tested on a physical model, or adopted from literature (see Innovyze (2014) for further details).…”

Section: Option 1: Weir Equationsmentioning

confidence: 99%

Modular conceptual modelling approach and software for river hydraulic simulations

Wolfs

Meert

Willems

2015

Environmental Modelling & Software

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a b s t r a c tNumerous applications in river management require computationally efficient models that can accurately simulate the state of a river. This paper presents a reduced complexity modelling approach that emulates the results of detailed full hydrodynamic models. Its modular design based on virtual reservoirs allows users to combine different model structures depending on the river dynamics and intended use. A semi-automatic software tool (Conceptual Model Developer, CMD) was developed to facilitate model setup. To prevent instabilities during simulations, a highly efficient discrete calculation scheme is presented with a variable time step. To illustrate the effectiveness of the presented approach, the Marke River in Belgium was conceptualized based on simulation results of a detailed model. Results show that the derived conceptual model mimics the detailed model closely, while the calculation time is reduced by more than 2000 times. Finally, several applications are discussed that employ conceptual models built according to the presented approach.

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“…Koefisien berhubungan dengan bukaan pintu dan energi spesifik di bagian hulu pintu (E1) yang dapat dilihat dalam persamaan (6) (Yen, Lin, and Tsai 2001…”

Section: Materials Dan Metode 21 Keseimbangan Energi Dan Momentumunclassified

Karakteristik Kecepatan Aliran Di Dekat Dasar Pintu Peluapan Bawah (Sluice Gate)

Laksitaningtyas

Legono²,

Yulistiyanto³

2020

pengairan

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Pintu air berfungsi sebagai pengatur aliran air yang berfungsi untuk mengendalikan debit, muka air dan monitoring debit. Aliran air yang mengalir melalui pintu dapat dalam kondisi aliran bebas maupun aliran terendam yang tergantung dari kedalaman tailwater. Karakteristik aliran yang mengalir melalui pintu air berdasarkan persamaan keseimbangan energi dan momentum, yang tergantung dari tekanan, kecepatan dan kedalaman air yang berada di hulu /hilir pintu air. Hidrolika pintu air terutama pada kondisi aliran bebas sangat dinamis, termasuk profil muka air, gaya yang terjadi pada pintu, atau distribusi pintu bagian bawah, yang banyak diabaikan. Terdapat beberapa pengembangan rumus dasar dari aliran yang mengalir melalui pintu air, terutama pada pengembangan vena kontrakta. Vena kontrakta akan menghasilkan nilai dari koefisein debit (Cd) dan koefisien kontraksi (Cc) yang didapatkan dari rasio perhitungan metode yang sudah ada. Metode dapat juga dengan rasio pengukuran, perhitungan kejadian secara teoritis dan melalui percobaan di laboratorium. Persamaan debit melalui pintu tidak terlalu efektif bila digunakan pada kondisi bukaan pintu yang besar dan pada kondisi pintu terendam penuh.

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Hydraulic characteristics and discharge control of sluice gates

Cited by 22 publications

References 10 publications

Experimental and Numerical Investigation of Flow under Sluice Gates

Experimental and Numerical Investigation of Flow under Sluice Gates

Modular conceptual modelling approach and software for river hydraulic simulations

Karakteristik Kecepatan Aliran Di Dekat Dasar Pintu Peluapan Bawah (Sluice Gate)

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