Discharge Coefficient of a Spillway with a Riser Perforated by Rectangular Orifices
Publication: Journal of Irrigation and Drainage Engineering
Volume 145, Issue 11
Abstract
Perforated riser principal spillways are widely used in check dams, and rectangular orifices are the preferred orifice geometry for risers constructed of brick. However, there is little research based on risers perforated with rectangular orifices. This paper discusses the discharge coefficient of such a structure, based on the experimental data and data collected from literature, during which an estimation of the discharge equations for a riser perforated with circular orifices was made. First, an existing equation for a riser with circular orifices is selected based on the coefficient of determination () index and the Nash–Sutcliffe efficiency (NSE) index. Then, an equation for the discharge coefficient of a riser perforated with rectangular orifices is proposed (, ) considering the factors of the diameter of the riser pipe, the width of the rectangular orifice, and the head over the centerline of the orifice. This work is expected to provide a reference for the design and investigation of a perforated riser principal spillway.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the submitted article.
Acknowledgments
This work was supported by the National Key Research and Development Program of China (2016YFC0402404) and the National Natural Science Foundation of China (51679197, 41330858, and 51679193).
References
Azimi, H., H. Bonakdari, and I. Ebtehaj. 2017a. “A highly efficient gene expression programming model for predicting discharge coefficient in a side weir along a trapezoidal canal.” Irrig. Drain. 66 (4): 655–666. https://doi.org/10.1002/ird.2127.
Azimi, H., S. Shabanlou, I. Ebtehaj, H. Bonakdari, and S. Kardar. 2017b. “Combination of computational fluid dynamics, adaptive neuro-fuzzy inference system, and genetic algorithm for predicting discharge coefficient of rectangular side orifices.” J. Irrig. Drain. Eng. 143 (7): 04017015. https://doi.org/10.1061/(ASCE)IR.1943-4774.0001190.
Barlow, W. T., and D. Brandes. 2015. “Stage-discharge models for concrete orifices: Impact on estimating detention basin drawdown time.” J. Irrig. Drain. Eng. 143 (7): 04015023. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000923.
Brandes, D., and W. T. Barlow. 2012. “New method for modeling thin-walled orifice flow under partially submerged conditions.” J. Irrig. Drain. Eng. 138 (10): 924–928. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000488.
Chamberlain, A. S. 1986. A multiple stage detention basin analysis and design model. University Park, PA: Pennsylvania State Univ.
Deng, Y. 2008. “Research on hydraulic characteristics of the water-release tower in silt reservoir.” Master thesis, Faculty of Water Resources and Hydroelectric Engineering, Xi’an Univ. of Technology.
Ebtehaj, I., H. Bonakdari, F. Khoshbin, and H. Azimi. 2015. “Pareto genetic design of group method of data handling type neural network for prediction discharge coefficient in rectangular side orifices.” Flow Meas. Instrum. 41 (Mar): 67–74. https://doi.org/10.1016/j.flowmeasinst.2014.10.016.
Fennessey, L. A. J., and A. R. Jarrett. 1997. “Influence of principal spillway geometry and permanent pool depth on sediment retention of sedimentation basins.” Trans. ASAE 40 (1): 53–59. https://doi.org/10.13031/2013.21248.
Gupta, H. V., H. Kling, K. K. Yilmaz, and G. F. Martinez. 2009. “Decomposition of the mean squared error and NSE performance criteria: Implications for improving hydrological modelling.” J. Hydrol. 377 (1): 80–91. https://doi.org/10.1016/j.jhydrol.2009.08.003.
Henderson, F. M. 1966. Open channel flow. New York: Macmillan.
Hua, J. 1987. “Hydraulics of terrace intake risers with orifice plates.” Master thesis, Dept. of Agricultural Engineering, Kansas State Univ.
Hua, J., J. M. Steichen, and B. M. McEnroe. 1989. “Orifice plates to control the capacity of terrace intake risers.” Appl. Eng. Agric. 5 (3): 397–401. https://doi.org/10.13031/2013.26534.
Hussain, A., Z. Ahmad, and G. L. Asawa. 2010. “Discharge characteristics of sharp-crested circular side orifices in open channels.” Flow Meas. Instrum. 21 (3): 418–424. https://doi.org/10.1016/j.flowmeasinst.2010.06.005.
Hussain, A., Z. Ahmad, and G. L. Asawa. 2011. “Flow through sharp-crested rectangular side orifices under free flow condition in open channels.” Agric. Water Manage. 98 (10): 1536–1544. https://doi.org/10.1016/j.agwat.2011.05.004.
Hussain, A., Z. Ahmad, and C. S. P. Ojha. 2014. “Analysis of flow through lateral rectangular orifices in open channels.” Flow Meas. Instrum. 36 (4): 32–35. https://doi.org/10.1016/j.flowmeasinst.2014.02.002.
Li, P., et al. 2019. “Runoff change and sediment source during rainstorms in an ecologically constructed watershed on the Loess Plateau, China.” Sci. Total Environ. 664 (May): 968–974. https://doi.org/10.1016/j.scitotenv.2019.01.378.
Linderman, C. L., N. P. Swanson, and L. N. Mielke. 1976. “Riser intake design for settling basins.” Trans. ASABE 19 (5): 894–0896. https://doi.org/10.13031/2013.36141.
McLemore, A. J., J. S. Tyner, D. C. Yoder, and J. R. Buchanan. 2013. “Discharge coefficients for orifices cut into round pipes.” J. Irrig. Drain. Eng. 139 (11): 947–954. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000641.
Ministry of Water Resources of the People’s Republic of China. 2003. Technical code of key dam for soil and water conservation. Beijing: China Water and Power Press.
Phillips, R. L. 1969. “Tile outlet terraces—History and development.” Trans. ASABE 12 (4): 517–518. https://doi.org/10.13031/2013.38880.
Prohaska, P. D., A. A. Khan, and N. B. Kaye. 2010. “Investigation of flow through orifices in riser pipes.” J. Irrig. Drain. Eng. 136 (5): 340–347. https://doi.org/10.1061/(ASCE)IR.1943-4774.0000195.
Ritter, A., and R. Muñoz-Carpena. 2013. “Performance evaluation of hydrological models: Statistical significance for reducing subjectivity in goodness-of-fit assessments.” J. Hydrol. 480 (Feb): 33–45. https://doi.org/10.1016/j.jhydrol.2012.12.004.
Shabanlou, S., H. Azimi, I. Ebtehaj, and H. Bonakdari. 2018. “Determining the scour dimensions around submerged vanes in a 180° bend with the gene expression programming technique.” J. Mar. Sci. Appl. 17 (2): 233–240. https://doi.org/10.1007/s11804-018-0025-5.
Shi, P., Y. Zhang, Z. P. Ren, Y. Yu, P. Li, and J. F. Gong. 2019. “Land-use changes and check dams reducing runoff and sediment yield on the Loess Plateau of China.” Sci. Total Environ. 664 (May): 984–994. https://doi.org/10.1016/j.scitotenv.2019.01.430.
Visser, K. K., J. M. Steichen, B. M. McEnroe, and J. Hua. 1988. “Hydraulics of perforated terrace inlet risers.” Trans. ASABE 31 (5): 1451–1454. https://doi.org/10.13031/2013.30884.
Wang, W., K. Chau, C. Cheng, and L. Qiu. 2009. “A comparison of performance of several artificial intelligence methods for forecasting monthly discharge time series.” J. Hydrol. 374 (3): 294–306. https://doi.org/10.1016/j.jhydrol.2009.06.019.
Xu, G. C., P. Li, K. X. Lu, T. T. Zhan, J. X. Zhang, Z. P. Ren, X. K. Wang, K. X. Yu, P. Shi, and Y. T. Cheng. 2019. “Seasonal changes in water quality and its main influencing factors in the Dan River Basin.” Catena 173 (Feb): 131–140. https://doi.org/10.1016/j.catena.2018.10.014.
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©2019 American Society of Civil Engineers.
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Received: Aug 23, 2018
Accepted: Jul 9, 2019
Published online: Aug 20, 2019
Published in print: Nov 1, 2019
Discussion open until: Jan 20, 2020
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