New Approach for Estimation of Rectangular Side Weirs Discharge in Subcritical Flow
Publication: Journal of Irrigation and Drainage Engineering
Volume 142, Issue 5
Abstract
Side weirs are used to divert the flow from a main channel to a desired environmental area. These basic hydraulic elements are commonly preferred in drainage and irrigation systems of surface water. Many studies have been conducted to determine the outflow discharge of side weirs. De Marchi’s approach, which assumes constant specific energy along the side weir, can be applied to describe the surface equation and therefore the discharge coefficient. However, the use of this approach is not easy in experimental and theoretical studies. This study presents a new semianalytical approach that determines the discharge capacity of rectangular side weirs. The findings of this new method are consistent with numerical and experimental results.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The author thanks TUBITAK (Scientific and Technological Research Council of Turkey), which supports Project No. MAG 104M394, and Emiroglu et al. (2011) for the use of their experimental data in the present study.
References
Ackers, P., White, W. R., Perkins, J. A., and Harrison, A. J. M. (1978). Weirs and flumes for flow measurement, Wiley, New York, 327.
ANSYS Fluent [Computer Software]. ANSYS, Canonsburg, PA.
Aydin, M. C. (2012). “CFD simulation of free-surface flow over triangular labyrinth side weir.” Adv. Eng. Software, 45(1), 159–166.
Aydin, M. C. (2015). “Investigation of a sill effect on rectangular side-weir flow by using CFD.” J. Irrig. Drain. Eng., 04015043.
Aydin, M. C., and Emiroglu, M. E. (2013). “Determination of capacity of labyrinth side weir by CFD.” Flow Meas. Instrum., 29, 1–8.
Borghei, S. M., Jalili, M. R., and Ghodsian, M. (1999). “Discharge coefficient for sharp-crested side weir in subcritical flow.” J. Hydr. Eng., 1051–1056.
Borghei, S. M., and Parvaneh, A. (2011). “Discharge characteristics of a modified oblique side weir in subcritical flow.” Flow Meas. Instrum., 22(5), 370–376.
Chanson, H. (2004). The hydraulics of open channel flow: An introduction, 2nd Ed., Elsevier, Butterworth-Heinemann, Oxford, U.K.
De Marchi, G. (1934). “Saggio di teoria de funzionamente degli stramazzi letarali.” L’Energia Elettrica, 11(11), 849–860.
Dursun, O. F., Kaya, N., and Firat, M. (2012). “Estimating discharge coefficient of semi-elliptical side weir using ANFIS.” J. Hydrol., 426–427, 55–62.
El-Khashab, A. M. M., and Smith, K. V. H. (1976). “Experimental investigation of flow over side weirs.” J. Hydraul. Div., 102(9), 1255–1268.
Emiroglu, M. E., Agaccioglu, H., and Kaya, N. (2011). “Discharging capacity of rectangular side weirs in straight open channels.” Flow Meas. Instrum., 22(4), 319–330.
Emiroglu, M. E., Aydin, M. C., and Kaya, N. (2014). “Discharge characteristics of a trapezoidal labyrinth side weir with one and two cycles in subcritical flow.” J. Irrig. Drain. Eng., 140(5), 04014007-1–04014007-13.
Emiroglu, M. E., and Kaya, N. (2011). “Discharge coefficient for trapezoidal labyrinth side weir in subcritical flow.” Water Resour. Manage., 25(3), 1037–1058.
Emiroglu, M. E., Kaya, N., and Agaccioglu, H. (2010). “Discharge capacity of labyrinth side weir located on a straight channel.” J. Irrig. Drain. Eng., 37–46.
Hager, W. H. (1987). “Lateral outflow over side weirs.” J. Hydr. Eng., 491–504.
Kaya, N., Emiroglu, M. E., and Agaccioglu, H. (2011). “Discharge coefficient of a semi-elliptical side weir in subcritical flow.” Flow Meas. Instrum., 22(1), 25–32.
Ranga Raju, K. G., Prasad, B., and Grupta, S. K. (1979). “Side weir in rectangular channels.” J. Hydraul. Div., 105(5), 547–554.
Schmidt, M. (1957). Gerinnehydraulik, Bauverlag, Wiesbaden, Germany, 241.
Singh, R., Manivannan, D., and Satyanarayana, T. (1994). “Discharge coefficient of rectangular side weirs.” J. Irrig. Drain. Eng., 814–819.
Subramanya, K., and Awasthy, S. C. (1972). “Spatially varied flow over side weirs.” J. Hydraul. Div., 98(1), 1–10.
Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 142 • Issue 5 • May 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Oct 20, 2015
Accepted: Dec 9, 2015
Published online: Feb 25, 2016
Published in print: May 1, 2016
Discussion open until: Jul 25, 2016
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.