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http://dx.doi.org/10.3741/JKWRA.2016.49.12.961

Experimental study on the discharge coefficient of slope-type and step-type weirs  

Kang, Joon Gua (River Experiment Center, Korea Institute of Civil Engineering and Building Technology)
Kim, Jong Tae (River Experiment Center, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korea Water Resources Association / v.49, no.12, 2016 , pp. 961-969 More about this Journal
Abstract
Due to the recent requirement of installing low-head structures considering environmental aspects, various types of fixed weir have been suggested. However, the design guideline of transverse structures for practical application is very limited. The purpose of the present study is to analyze the hydraulic properties of the fixed weirs installed at the small and middle sized rivers of Korea depending on the physical specifications to provide fundamental data that may be reflected to the design of a low-head fixed weir considering the relevant environmental aspects. The basic discharge coefficient of slope-type and step-type weirs depending on change of crest was estimated, and a stage-discharge curve was developed. In addition, the flow properties under free flow and submerged flow conditions were analyzed by varying the hydraulic conditions such as discharge and crest.
Keywords
Weir; Hydraulic Model Experiment; Discharge Coefficient; Free Flow; Submerged Flow;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Tullis, B. P., Young, J. C., and Chandler, M. A. (2007). "Head-discharge relationships for submerged labyrinth weirs." Journal of Hydraulic Engineering, Vol. 133, No. 3, pp. 248-254.   DOI
2 Villemonte, J. R. (1947). "Submerged weir discharge studies." Engineering News-Record, Vol. 139, No. 26, pp. 54-57.
3 We, Y. M. (2005). Aeration & Energy dissipation efficiency by overflow of steped weir. Ph. D. dissertation, University of Chung-Ang, pp. 34-97.
4 Yeo, H. G., Kang, J. G., Cheong, S. H., and Yoon, B. M. (2005). "Experimental study on establishment of downstream critical depth in round-crested weir." Proceedings Korea Water Resources Association, KWRA, pp. 1113-1117.
5 Zerihun, Y. T. and Fenton, J. D. (2007). "A Boussinesq-type model for flow over trapezoidal profile weirs." Journal of Hydraulic Research, Vol. 45, No. 4, pp. 519-528.   DOI
6 Borghei, S. M., Jalili, M. R., and Ghodsian, M. (1999). "Discharge coefficient for shape-crested side weir in subcritical flow." Journal of Hydraulic Engineering, ASCE, Vol. 125, No. 10, pp. 1051-1056.   DOI
7 Borghei, S. M., Vatannia, Z., Ghodsian, M., and Jalili, M. R. (2003). "Oblique rectangular sharp-crested weir." Water and Maritime Engineering, Vol. 156, No. 2, pp. 185-191.   DOI
8 Bormann, N. E. and Julien, P. Y. (1991). "Scour downstream of gradecontrol structures." Journal of Hydraulic Engineering, ASCE, Vol. 117, No. 5, pp. 579-594.   DOI
9 Chanson, H. (2001). "Teaching hydraulic design in an Australian undergraduate civil engineering curriculum." Journal of Hydraulic Engineering, ASCE, Vol. 127, No. 12, pp. 1002-1008.   DOI
10 Falvey, H. T. (2002). Hydraulic design of labyrinth weirs. ASCE, Reston, Virginia, pp. 31-68.
11 Henderson, F. M. (1966). Open Channel Flow. The Macmillan Company, New York, pp. 48-85.
12 Kang, J. G., Yeo, H. K., Lee, K. C., and Choi, N. J. (2010). "Experimental study on flow characteristic and wave type flow at downstream of stepped weir." Journal of Korea Water Resources Association, Vol. 43, No. 1, pp. 41-49.   DOI
13 Hossein, A. and Sara, B. (2010). "Discharge coefficient of sharp-crested weirs using potential flow." Journal of hydraulic Research, Vol. 47, No. 6, pp. 820-823.   DOI
14 Jin, S. W. (2007). Experimental study on discharge coefficient of diagonal weirs. M.S. dissertation, University of Hongik, Korea, pp. 19-60.
15 Kabiri-Samani, A. R. and Javaheri, A. (2012). "Discharge coefficient for free and submerged flow over piano key weirs." Journal of hydraulic Research, Vol. 50, No. 1, pp. 114-120.   DOI
16 Kim, H. J., Kim, C. W., and Woo, H. S. (2003). "The effect that stream of river-cross structure for ecological development its alternative." Journal of Korean Society of Civil Engineers, KSCE, Vol. 51, No. 3, pp. 42-58.
17 Korea Water Resources Association (2005). River design standards and explanation. Journal of Korea Water Resources Association, pp. 411-420.
18 Novak, P. and Cabelka, J. (1981). Models in hydraulic engineering. Pitman, London, UK, pp. 185-187.
19 Ohtsu, I., Yasuda, Y., and Gotoh, H. (2001). "Hydraulic condition for undular-jump formations." Journal of Hydraulic Research, Vol. 39, No. 2, pp. 203-209.   DOI
20 Rice, C. E., Kadavy, K. C., and Robinson, K. M. (1998). "Roughness of loose rock riprap on steep slopes." Journal of Hydraulic Engineering, ASCE, Vol. 124, No. 2, pp. 179-185.   DOI
21 Song, J. W., Park, Y. J., and Lee, Y. H. (1994). "Characteristics of channel bend reach and shape of cross-section." Journal of Korean Society of Civil Engineers, KSCE, Vol. 14, No. 5, pp. 1191-1197.