Hydraulic Characteristics of Flow over Sinusoidal Sharp-Crested Weirs
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VIEW THE REPLYPublication: Journal of Irrigation and Drainage Engineering
Volume 141, Issue 3
Abstract
Sharp-crested weirs are widely applied in agricultural and hydraulic engineering for measuring and regulating flow. The various shapes of weirs give rise to their special characteristics. This study introduces a novel sharp-crested weir design with a sinusoidal notch, and investigates physical models of sinusoidal sharp-crested weirs of different widths and heights. The analysis aims to establish the head-discharge relationship and to inspect the three-dimensional velocity distribution and the hydrodynamic characteristics of flow in the vicinity of the weir plate. The hydraulic behavior of sinusoidal weirs is also compared with that of rectangular sharp-crested weirs. The results show that the secondary currents and the turbulence intensity in the vicinity of the sinusoidal weirs are stronger than those of rectangular weirs. Therefore, this type of weir can provide an efficient passage for floating debris and sediment.
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References
Baddour, R. E. (2008). “Head-discharge equation for sharp-crested polynomial weir.” J. Irrig. Drain. Eng., 260–262.
Bagheri, S., and Heidarpour, M. (2010). “Flow over rectangular sharp-crested weirs.” J. Irrig. Sci., 28(2), 173–179.
Banks, W. H. H., Burch, C. R., and Shaw, T. L. (1968). “The design of proportional and logarithmic thin-plate weirs.” J. Hydraul. Res., 6(2), 75–106.
Bos, M. G. (1976). Discharge measurement structures, International Institute for Land Reclamation and Improvement (ILRI), Wageningen, Netherlands.
Chanson, H. (2004). Environmental hydraulics of open channel flows, Elsevier Butterworth-Heinemann, London, U.K.
Chanson, H., and Wang, H. (2013). “Unsteady discharge calibration of a large V-notch weir.” Flow Meas. Instrum., 29, 19–24.
Igathinathane, C., Srikanth, I., Prakash, K., Ramesh, B., and Womac, A. R. (2007). “Development of parabolic weirs for simplified discharge measurement.” J. Biosyst. Eng., 96(1), 111–119.
Keshava Murthy, K., and Gopalakrishna Pillai, G. (1977). “Some aspects of quadratic weirs.” J. Hydraul. Div., 1059–1076.
Keshava Murthy, K., and Shesha Prakash, M. N. (1995). “Alternative design of square-rooting measuring device in open channel.” J. Irrig. Drain. Eng., 374–377.
Maple version 12.0 [Computer software]. Canada, ON, Maplesoft, Waterloo Maple.
Rahimpour, M., Keshavarz, Z., and Ahmadi, M. (2011). “Flow over trapezoidal side weir.” Flow Meas. Instrum., 22(6), 507–510.
Rajaratnam, N., and Muralidhar, D. (1971). “Pressure and velocity distribution for sharp-crested weirs.” J. Hydraul. Res., 9(2), 241–248.
Swamee, P. K., Pathak, S. K., Agarwal, M., and Ansari, A. S. (1991). “Alternative linear weir design.” J. Irrig. Drain. Eng., 311–323.
Vatankhah, A. R. (2010). “Flow measurement using circular sharp-crested weirs.” Flow Meas. Instrum., 21(2), 118–122.
Vatankhah, A. R. (2012). “Head-discharge equation for sharp-crested weir with piecewise-linear sides.” J. Irrig. Drain. Eng., 1011–1018.
Vatankhah, A. R., and Kouchakzadeh, S. (2009). “Discussion of head-discharge equation for sharp-crested polynomial weir by R. E. Baddour.” J. Irrig. Drain. Eng., 393–395.
Wahl, T. L. (2000). “Analyzing ADV data using WinADV.” Proc., Joint Conf. on Water Resources Engineering and Water Resources Planning and Management, ASCE, Reston, VA.
Wilcox, D. C. (1993). Turbulence modeling for CFD, DCW Industries, La Canada, CA.
WinADV version 2.026 [Computer software]. Denver, CO, Water Resources Research Laboratory, Bureau of Reclamation.
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© 2014 American Society of Civil Engineers.
History
Received: Dec 19, 2013
Accepted: Aug 5, 2014
Published online: Aug 27, 2014
Discussion open until: Jan 27, 2015
Published in print: Mar 1, 2015
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