• Title/Summary/Keyword: Coastal harbor

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Numerical Simulation of the Ship-Induced Waves inside Harbor (항내 항주파 계산을 위한 수치모의)

  • 이화영;권세영;오병철;전인식
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 2003.08a
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    • pp.270-275
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    • 2003
  • 일반적으로 완경사를 가지는 자연해빈은 항내 파랑 에너지를 감쇄시켜 항만의 정온도를 유지시키는 중요한 역할을 한다. 그러나 계속되는 항만개발로 자연해빈이 인공적인 호안이나 안벽 등으로 급속하게 대체되어 가고 있는 실정이다. (중략)

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Inundation Simulation on a Vertical Dock Using Finite Element Storm Surge Model (유한요소 폭풍해일 모형을 이용한 직립안벽에 대한 범람모의)

  • Suh, Seung-Won;Lee, Hwa-Young
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.24 no.4
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    • pp.235-246
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    • 2012
  • Typhoon induced surge simulations are done to make an establishment of coastal disaster prevention plan. To apply efficient run-up and overtopping on vertical harbor docks, in which prevailing wet-dry scheme cannot be satisfied due to infinite steepness, an imaginary internal barrier concept introduced and analyzed. Before real application on the Mokpo harbor area, feasibility tests are done on an idealized simple geometry and as a result it is found that the moderate width of the barrier might be 1 m. The threshold value of the minimum wet depth $H_{min}$ for land area, which behaves sensitive role in inundation area and depth, depends on grid size. However it is revealed that 0.01 m is adequate value in this fine finite element with 10 m spacing. A hypothetical typhoon of 100 years return period in central pressure and maximum velocity is generated based on historical tracks. Simulation of possible inundation on Mokpo area is performed with asymmetrical vortex of hypothetical typhoon and wave coupling. Model results show general agreement in pattern compared to other's prediction, however possibility of inundation enlargement is expected in harbor area.