Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Hydraulic Characteristic Analysis of Buoyant Flap Typed Storm Surge Barrier using FLOW-3D model

FLOW-3D 모형을 이용한 부유 플랩형 고조방파제의 수리학적 특성 분석

  • Ko, Dong Hui (Department of Civil and Environmental Engineering, Wonkwang University) ;
  • Jeong, Shin Taek (Department of Civil and Environmental Engineering, Wonkwang University) ;
  • Kim, Jeong Dae (Korea Fisheries Resources Agency)
  • 고동휘 (원광대학교 토목환경공학과) ;
  • 정신택 (원광대학교 토목환경공학과, 원광대학교 부설 공업기술개발연구소) ;
  • 김정대 (한국수산자원관리공단)
  • Received : 2014.06.06
  • Accepted : 2014.06.23
  • Published : 2014.06.30
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Abstract

A storm surge barrier is a specific type of floodgate, designed to prevent a storm surge or spring tide from flooding the protected area behind the barrier. A surge barrier is almost always part of a larger flood protection system consisting of floodwalls, dikes, and other constructions. Surge barriers allow water to pass under normal circumstances but, when a (storm) surge is expected, the barrier can be closed. Among the various means of closing, buoyant flap typed storm surge barrier which was indicated by MOSE project in Italy is chosen for Masan bay protection, and the motion of the surge barrier under the action of storm surge and wave is examined using FLOW-3D, a computational fluid dynamics software analyzing various physical flow processes. Numerical result shows that storm surge barrier is successfully operated under wave height 3 m, and tidal range 2 m.

고조방파제는 폭풍해일이나, 대조시 창조류로부터 내부 해역을 보호하기 위하여 설계된 특수한 형태의 수문 구조물로, 홍수 방지 벽, 방조제 및 다른 구조물로 구성된다. 평상시 고조방파제는 해수 소통을 허용하지만, 폭풍해일이 예상되면 폐쇄된다. 폐쇄시키는 다양한 방법 중 본 연구에서는 이태리 모세프로젝트에 적용한 것과 같은 부유 플랩형 고조방파제를 마산만에 적용할 경우, 폭풍해일 및 파랑이 작용할 때의 고조방파제 거동특성을 3차원 유동해석프로그램인 FLOW-3D를 이용하여 살펴보았다. 수치해석결과, 고조차 2 m인 상태에서 파고 3 m 조건에서도 고조방파제로서의 기능을 발휘할 수 있는 것으로 평가되었다.

Keywords

References

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