한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제40권1호
  • /
  • Pages.51-62
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  • 2007
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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횡월류위어의 형상에 따른 유량자수 추정

An Estimation of Discharge Coefficients with the Variations of Side Weir Shape

  • 송재우 (홍익대학교 공과대학 토목공학과) ;
  • 박성식 (홍익대학교 방재연구센터) ;
  • 김지호 (서일대학 토목과)
  • 발행 : 2007.01.31
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초록

횡월류위어의 월류량을 산정하기 위해서는 횡월류위어의 흐름특성을 분석하고 유량계수를 산정하는 것이 필요하다. 본 연구에서는 수리실험을 통하여 직사각형, 삼각형 횡월류위어에 대하여 본류의 Froude 수, 횡월류위어의 폭, 위어정각 등의 형상변화에 따른 유량계수를 산정하였다. 횡월류위어의 유량계수는 횡월류위어의 형상 및 기하학적 조건과 본류의 Froude수에 따라 변하는 것으로 나타났다. 다중 회귀분석을 통하여 직사각형과 삼각형 횡월류위어의 유량계수식을 제시하였으며, 측정된 월류량과의 비교 분석을 통해 적용성을 확인하였다.

To estimate more accurately the outflow over a sharp crested side weir, it is necessary to analyze the flow characteristics over side weir and to estimate the discharge coefficient in the weir equation. The purpose of this study is to estimate the discharge coefficients of sharp crested rectangular and triangular side weirs by means of hydraulic model experiments with the variations of upstream Froude number in the main channel and length and apex angle. Experimental results show that the discharge coefficients depend on the shape and geometric conditions of side weir as well as the upstream Froude number in the main channel. Through the multiple regression analysis, formulas of discharge coefficient for rectangular and triangular types are proposed and its applicability is confirmed by comparing estimated and measured discharges over side weirs.

키워드

참고문헌

  1. 박태선 (2002). '구형 수로내 횡월류 흐름의 특성.' 한국수자원학회논문집, 한국수자원학회, 제35권, 제3호, pp. 251-259
  2. 여창건, 김지호, 이호열, 송재우 (2004). '횡월류위어의 유량계수에 관한 실험적 연구.' 2004년도 한국수자원학회 학술발표회 초록집, 한국수자원학회, p. 98
  3. 김지호, 이호열, 김윤태, 송재우 (2004). 'Off-line 저류지 횡월류위어의 적정유량계수 제안.' 2004년도 대한토목학희 정기학술대회 논문집, 대한토목학회, pp. 946-951
  4. Borghei, S.M., Jalili, M.R., and Ghodsian, M. (1999). 'Discharge coefficient for sharp-crested side weir in subcritical flow.' Journal of Hydraulic Engineering, ASCE, Vol. 125, No. 10, pp. 1051-1056 https://doi.org/10.1061/(ASCE)0733-9429(1999)125:10(1051)
  5. Cheong, H.F. (1991). 'Discharge coefficient of lateral diversion from trapezoidal channel.' Journal of Irrigation and Drainage Engineering, ASCE, Vol. 117, No.4, pp. 461-475 https://doi.org/10.1061/(ASCE)0733-9437(1991)117:4(461)
  6. Chow, V.T. (1959). Open channel hydraulics. McGraw-Hill, New York
  7. Coleman, G.S. and Smith, D. (1923). The discharging capacity of side weirs. Selected Engineering Paper No.6, Institute of Civil Engineers, London
  8. Cosar, A., and Agaccioglu, H. (2004). 'Discharge coefficient of a triangular side-weir located on a curved channel.' Journal of Irrigation and Drainage Engineering, ASCE, Vol. 130, No.5, pp. 410-423 https://doi.org/10.1061/(ASCE)0733-9437(2004)130:5(410)
  9. De Marchi, G. (1934). 'Essay on the performance of lateral weirs.' L' Energia Elettrica; Vol. 11, No. 11, pp. 849-860
  10. El-Khashab, A., (1975). Hydraulics of flow over side weirs. Ph.D. dissertation, University of Southampton, Southampton, U.K
  11. El-Khashab, A, and Smith, K.V.H. (1976). 'Experimental investigation of flow over side weirs.' Journal of Hydraulics Division, ASCE, Vol. 102, No.9, pp. 1255-1268
  12. Hager W.H. (1987). 'Lateral outflow over side weirs.' Journal of Hydraulic Engineering, ASCE, Vol. 113, No.4, pp. 491-504 https://doi.org/10.1061/(ASCE)0733-9429(1987)113:4(491)
  13. Jalili, M.R., and Borghei, S.M. (1996). 'Discussion of 'Discharge coefficient of rectangular side weirs,' by Singh, R., Manivannan, D., and Satyanarayana, T.' Journal of Irrigation and Drainage Engineering, ASCE, Vol. 122, No.2, p. 132 https://doi.org/10.1061/(ASCE)0733-9437(1996)122:2(132)
  14. Kumar, C.A., and Pathak, S.H. (1987). 'Triangular side weirs.' Journal of Irrigation and Drainage Engineering, ASCE, Vol. 113, No.1, pp. 98-105 https://doi.org/10.1061/(ASCE)0733-9437(1987)113:1(98)
  15. Ranga Raju, K.G., Prasad, B., and Gupta, S.K. (1979). 'Side weir in rectangular channel.' Journal of hydraulics division, ASCE, Vol. 105, No.5, pp, 547-554
  16. Singh, R., Manivannan, D., and Satyanarayana, T. (1994). 'Discharge coefficient of rectangular side weirs.' Journal of Irrigation and Drainage Engineering, ASCE, Vol. 120, No.4, pp. 814-819 https://doi.org/10.1061/(ASCE)0733-9437(1994)120:4(814)
  17. Subramanya, K., and Awasthy, S.C. (1972). 'Spatially varied flow over side weirs.' Journal of the Hydraulics Division, ASCE, Vol. 98, No.1, pp. 1-10
  18. Swamee, P.K., Pathak, S.K., Mohan, M., Agrawal, S.K., and Ali, M.S. (1994). 'Subcritical flow over rectangular side weir.' Journal of Irrigation and Drainage Engineering, ASCE, Vol. 120, No.1, pp. 212-217 https://doi.org/10.1061/(ASCE)0733-9437(1994)120:1(212)

피인용 문헌

  1. The Effectiveness of Overflow Improvement of Broad-Crested Side Weirs according to Installing a Hydraulic Structure vol.48, pp.7, 2015, https://doi.org/10.3741/JKWRA.2015.48.7.523