Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
권호 표지
DOI QR코드

DOI QR Code

Assessment of EFDC Model for Hydrodynamic Analysis in the Nakdong River

EFDC 모형의 낙동강 하류부 수리해석 적용성 평가

  • 허영택 (한국수자원공사 물관리센터) ;
  • 박진혁 (한국수자원공사 수자원연구원)
  • Published : 2009.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

This study analyzed a hydrodynamic behavior using the EFDC model (Environmental Fluid Dynamics Code) in the downstream of the Nakdong River in the case of a storm surge and a localized torrential rainfall caused by a major typhoon, and the sea level rise caused by global warming. The study area is selected Gaduk island with the lower boundary and Jindong with the upper boundary, to investigate the total river hydrodynamic behavior including the estuary. In order to verify this numerical model, the calculated results was compared with the observed stage at each gauging point in case of the storm rainfall in 2003 and 2006. From the results, it was shown that the numerical model(EFDC) has high accuracy and is useful in simulating more various cases.

최근 지구온난화에 따른 해수면 상승과 태풍의 내습으로 인하여 발생되는 폭풍해일 및 집중호우에 대하여 낙동강 하류부의 수리거동을 수치모형(EFDC)을 이용하여 해석하였다. 낙동강 하구둑을 포함한 하류부 일대에 대해 수리거동을 해석하기 위하여 대상영역을 진동에서 가덕도를 포함한 외해부까지 확장하였다. 수치모형에 의한 수위의 재현성을 검토하기 위하여 2003년 및 2006년 발생한 태풍 호우사상을 대상으로 각 수위관측지점에서의 관측 수위와 계산수위를 비교 하였다. 금번 실시된 연구결과 수치해석에 사용된 수치모형(EFDC)은 높은 재현성을 가지고 있음을 알 수 있었고 차후 폭넓은 연구에 활용가능성이 높다고 판단되었다.

Keywords

References

  1. 건설교통부 (2005). 낙동강 유역종합치수계획 보고서, pp. VII95-VII102
  2. 김차겸, 이종섭 (2000). '낙동강 하구 주변해역 3차원 해수유동 및 퇴적물 수송모델링.' 대한토목학회 학술발표회 논문집, 대한토목학회, pp. 729-732
  3. 류청로, 장선덕 (1979). '낙동강 하구의 조석과 유동.' 한국해양학회논문집, 한국해양학회, 제14권, 제2호, pp. 71-77
  4. 이정우 (2004). 3차원 수리수질모형(EFDC)을 이용한 저수지의 수질모의에 관한연구. 석사학위논문, 충남대학교. p. 77
  5. 장성태, 김기철 (2006). '낙동강 하구에서의 해양 환경변화.' 한국해양학회논문집, 한국해양학회, 제11권, 제1호, pp. 11-20
  6. 허영택 (2008). 'EFDC모형을 이용한 을숙도 우안배수문 증설에 따른 홍수위 저감효과 분석.' 수자원정보,한국수자원공사, 제48호, pp. 66-75
  7. Blumberg, A. F. and Mellor, G. L. (1987). 'A description of a three-dimensional coastal ocean circulation model. In Three-Dimensional Coastal Ocean Models.' Coastal and Estuarine Science, American Geophysical Union, Vol. 4, pp. 1-19 https://doi.org/10.1029/CO004p0001
  8. Galperin, B., Kantha, L. H., Hassid, S. and Rosati, A. (1998). 'A quasi-equilibrium turbulent energy model for geophysical flows.' Journal of the Atmospheric Sciences, Vol. 45, pp. 55-62 https://doi.org/10.1175/1520-0469(1988)045<0055:AQETEM>2.0.CO;2
  9. Jin, K. R. and Ji, Z.-G. (2001). 'Calibration and verification of a spectral wind-wave model for Lake Okeechobee.' Ocean Engineering, Vol. 28, pp.571-584 https://doi.org/10.1016/S0029-8018(00)00009-3
  10. Mellor, G. L. and Yamada, T. (1982). 'Development of a turbulence closure model for geophysical fluid problems.' Reviews of Geophysics and Space Physics, Vol. 20, pp. 851-875 https://doi.org/10.1029/RG020i004p00851
  11. Oey, L. Y., Mellor, G. L. and Hires, R. I. (1985a). 'A three-dimentional simulation of the Hudson-Raritan estuary. Part I: Description of the model and model simulations.' Journal of Physical Oceanography, Vol. 15, pp. 1676-1692 https://doi.org/10.1175/1520-0485(1985)015<1676:ATDSOT>2.0.CO;2
  12. Oey, L. Y., Mellor, G. L. and Hires, R. I. (1985b). 'A three-dimentional simulation of the Hudson-Raritan estuary. Part II: Comparison with observation.' Journal of Physical Oceanography, Vol. 15, pp. 1693-1709 https://doi.org/10.1175/1520-0485(1985)015<1693:ATDSOT>2.0.CO;2
  13. Smagorinsky, J. (1963). 'General circulation experiments with the primitive equation, I. The basic experiment.' Monthly Weather Review, Vol. 91, pp. 99-164 https://doi.org/10.1175/1520-0493(1963)091<0099:GCEWTP>2.3.CO;2

Cited by

  1. Evaluation of Optimal Grid Resolution for Hydrodynamic Proper Simulation vol.20, pp.1, 2012, https://doi.org/10.7319/kogsis.2012.20.1.109
  2. Assessing Temporal and Spatial Salinity Variations in Estuary Reservoir Using EFDC vol.56, pp.6, 2014, https://doi.org/10.5389/KSAE.2014.56.6.139
  3. Coupling Simulation with Multi-dimensional Models for River Flow vol.33, pp.1, 2013, https://doi.org/10.12652/Ksce.2013.33.1.137
  4. Prediction of Water Quality Effect of Watershed Runoff Change in Doam Reservoir vol.33, pp.3, 2013, https://doi.org/10.12652/Ksce.2013.33.3.975
  5. Development and Application of Coupled System for River Flow Analysis with Multi-dimensional Models in Nakdong River vol.16, pp.4, 2014, https://doi.org/10.17663/JWR.2014.16.4.389
  6. Analysis of Flow and Bed Change on Hydraulic Structure using CCHE2D : Focusing on Changnyong-Haman vol.46, pp.7, 2013, https://doi.org/10.3741/JKWRA.2013.46.7.707
  7. A Study on Development of a GIS based Post-processing System of the EFDC Model for Supporting Water Quality Management vol.22, pp.4, 2014, https://doi.org/10.12672/ksis.2014.22.4.039