한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제43권6호
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  • Pages.525-531
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  • 2010
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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광정횡월류위어의 월류량 산정식 개발

Development of Discharge Formula for Broad Crested Side Weir

  • 박문형 (한국건설기술연구원 하천. 해안항만연구실) ;
  • 이동섭 (한국건설기술연구원 수자원환경연구본부 하천해안항만연구실)
  • Park, Moon-Hyung (River, Coastal and Harbor Research Division, Korea Institute of Construction Technology) ;
  • Rhee, Dong-Sop (River, Coastal and Harbor Research Division, Korea Institute of Construction Technology)
  • 투고 : 2010.04.08
  • 심사 : 2010.04.14
  • 발행 : 2010.06.30
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초록

본 연구에서는 De Marchi 유량계수 개념을 이용하여 상대적으로 폭이 넓은 개수로에서 광정횡월류위어 유량계수에 대한 위어 상류단 프루드수($Fr_1$), 위어 높이(h), 위어 길이(L), 위어 폭(W), 본류 폭(B)의 영향 및 예언횡월류위어의 유량계수와 광정횡월류위어의 유량계수의 상관성을 실험적으로 확인하였다. 분석 결과 폭이 넓은 개수로 흐름 조건에서는 본류 흐름 조건의 영향이 약화되고 위어 자체의 기하학적 형상에 의한 영향이 강화되기 때문에 예연횡월류위어와 광정횡월류위어 유량계수의 상호연관성이 상대적으로 약화되는 것으로 나타났으며, 차원해석을 통하여 $Fr_1$, h/$y_1$, L/B, W/($y_1-h$) 등 4개의 변수가 영향이 큰 것을 확인하였다. 그리고 실험 결과를 바탕으로 회귀분석을 통하여 새로운 광정횡월류위어 유량계수 산정식을 제안하였다.

In this study, the effects of upstream Froude number ($Fr_1$), weir height (h), weir length (L), weir width (W) and main channel width (B) on the discharge coefficient of broad crested side-weirs in a relatively wide rectangular open channel were investigated experimentally. Furthermore the relationship between discharge coefficients of sharp crested side weir and broad crested side weir was studied using the concept of De Marchi discharge coefficient. The effect of $Fr_1$ on the relationship between discharge coefficients of sharp crested side weir and broad crested side weir is decreased in wide open channel and the relative importance of other influential parameters like h/$y_1$, L/B, and W/($y_1-h$) are increased. New estimated equations for the discharge coefficients of broad crested side weir are suggested from regression analysis with the experiment data sets.

키워드

참고문헌

  1. 이동섭, 김창완(2008). “폭이 넓은 개수로에서의 예언횡월류위어 유량계수 산정.” 대한토목학회논문집, 제28권, 제5B호, pp. 449-458.
  2. Borghei, S.M., Jalili, M.R., and Ghodsin, M. (1999). “Discharge coefficient for Shape-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)
  3. Cheong, H.F. (1991). “Discharge coefficient of lateral diversion from traperzoidal 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)
  4. De Marchi, G. (1934). Saggio di teotia de funzionamenta degli stramazzi laterali. L'Energia Electtricia 11 (in Italian).
  5. Hager, W.H. (1987). “Lateral outflow over side weirs.” Journal of Hydraulic Engineering, ASCE, Vol. 113, No. 4, pp. 491-688. https://doi.org/10.1061/(ASCE)0733-9429(1987)113:4(491)
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  7. Jalili, M.R., and Borghei, S.M. (1996). “Discussion of 'Discharge coefficient of rectangular side weir,'by Singh, D. Manivannan and T. Satyanarayana.” 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)
  8. James, W., and Mitri, H. (1982). “Modeling side-weir diversion structures for stormwater management.” Canadian Journal of Civil Engineering, Vol. 9, pp. 197-205. https://doi.org/10.1139/l82-023
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  10. Ranga Raju, K.G., Prasad, B., and Gupta, S.K. (1979). “Side weir in rectangular channel.” Journal of the Hydraulics Division, ASCE, Vol. 105, No. 5, pp. 547-554.
  11. 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)
  12. Subramanya, K., and Awasthy, S.C. (1972). “Spatially varied flow over side-weirs.” Journal of the Hydraulic Division, ASCE, Vol. 98, No. 1, pp. 1-10.

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
  2. Numerical Modeling of Free Surface Flow over a Broad-Crested Rectangular Weir vol.48, pp.4, 2015, https://doi.org/10.3741/JKWRA.2015.48.4.281
  3. Estimation of discharge coefficients of the broad-crested side weir with various levee's side slope of main channel vol.49, pp.11, 2016, https://doi.org/10.3741/JKWRA.2016.49.11.941
  4. An Estimation of Discharge Coefficient Considering the Geometrical Shape of Broad Crested Side Weir vol.44, pp.12, 2011, https://doi.org/10.3741/JKWRA.2011.44.12.955