Hydraulic Performance of Asymmetric Labyrinth Side Weirs Located on a Straight Channel
Publication: Journal of Irrigation and Drainage Engineering
Volume 138, Issue 8
Abstract
This paper details a new design for labyrinth side weirs, which has been tested and analyzed. The proposed geometry for this labyrinth side weir differs from a triangular labyrinth side weir, in that it is asymmetric in plan. The hydraulic behavior of the present labyrinth side weir, with a constant opening length, different weir heights and asymmetric labyrinth side weir included angles has been experimentally investigated in the subcritical situation. Based on the analysis of more than 180 experimental data, an equation for discharge coefficient of the asymmetric triangular labyrinth side weir has been presented. The results show that the discharge coefficient of the asymmetric labyrinth side weir is up to 1.6 and 2.35 times more efficient than a symmetric labyrinth and rectangular side, respectively.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This research partially was financed by the Water Research Council, affiliated with the Ministry of Energy of Iran.
References
Borghei, S. M., Jalili, M. R., and Ghodsian, M. (1999). “Discharge coefficient for sharp-crested side weir in subcritical flow.” J. Hydraul. Eng.JHEND8, 125(10), 1051–1056.
Borghei, S. M., and Parvaneh, A. (2011). “Discharge characteristics of a modified oblique side weir in subcritical flow.” Flow Meas. Instrum.FMEIEJ, 22(5), 370–376.
Cheong, H.-F. (1991). “Discharge coefficient of lateral diversion from trapezoidal channel.” J. Irrig. Drain. Eng.JIDEDH, 117(4), 461–475.
Chow, V. T. (1959). Open channel hydraulics, McGraw-Hill, New York.
De-Marchi, G. (1934). “Essay on the performance of lateral weirs.” L’ Energia Eletterica, 11(11), 849–860.
Durga Rao, K. H. V., and Pillai, C. R. S. (2008). “Study of flow over side weirs under supercritical conditions.” Water Resour. Manage.WRMAEJ, 22(1), 131–143.
El-Khashab, A. M. M. (1975). “Hydraulics of flow over side-weirs.” Ph.D. thesis, Univ. of Southampton, Southampton, U.K.
El-Khashab, A., and Smith, K. V. H. (1976). “Experimental investigation of flow over side weirs.” J. Hydraul. Eng.JHEND8, 102(9), 1255–1268.
Emiroglu, M. E., Kaya, N., and Agaccioglu, H. (2010). “Discharge capacity of labyrinth side weir located on a straight channel.” J. Irrig. Drain. Eng.JIDEDH, 136(1), 37–46.
Gonzalez, J., Rojas, H., Ortega, J., and Prieto, A. (2002). “A new clustering technique for function approximation.” IEEE Trans. Neural Netw.ITNNEP, 13(1), 132–142.
Hager, W. H. (1987). “Lateral outflow over side weirs.” J. Hydr. Div.JYCEAJ, 113(4), 491–503.
Hay, N., and Taylor, G. (1970). “Performance and design of labyrinth weirs.” J. Hydraul. Div.JYCEAJ, 6(11), 2337–2357.
Jalili, M. R., and Borghei, S. M. (1996). “Discussion: Discharge coefficient of rectangular side weirs.” J. Irrig. Drain. Eng.JIDEDH, 122(2), 132.
Novak, P., and Cabelka, J. (1981). Models in hydraulic engineering, Pitman, Marshfield, MA.
Parvaneh, A., Borghei, S. M., and Jalili Ghazizadeh, M. R. (2011). “Discussion of ‘Discharge capacity of labyrinth side weir located on a straight channel’ by M. Emin Emiroglu, Nihat Kaya, and Hayrullah Agaccioglu.” J. Irrig. Drain. Eng.JIDEDH, 137(11), 743–745.
Pathirana, K. P. P., Munas, M. M., and Jaleel, A. L. A. (2006). “Discharge coefficient for sharp-crested side weir in supercritical flow.” J. Institution Eng., 39(2), 17–24.
Ramamurthy, A. S., and Carballada, L. (1980). “Lateral weir flow model.” J. Irrig. Drain. Eng.JIDEDH, 106(1), 9–25.
Ranga Raju, K. G., Prasad, B., and Grupta, S. K. (1979). “Side weir in rectangular channels.” J. Hydr. Div.JYCEAJ, 105(5), 547–554.
Singh, R., Manivannan, D., and Satyanarayana, T. (1994). “Discharge coefficient of rectangular side weirs.” J. Irrig. Drain. Eng.JIDEDH, 120(4), 814–819.
Subramanya, K., and Awasthy, S. C. (1972). “Spatially varied flow over side weirs.” J. Hydraul. Eng.JHEND8, 98(1), 1–10.
Ura, M., Kita, Y., Akiyama, J., Moriyama, H., and Kumar Jha, A. (2001). “Discharge coefficient of oblique side-weirs.” J. Hydrosci. Hydraul. Eng., 19(1), 85–96.
Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 138 • Issue 8 • August 2012
Pages: 766 - 772
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Sep 23, 2010
Accepted: Jan 30, 2012
Published online: Feb 1, 2012
Published in print: Aug 1, 2012
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.