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

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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3-Dimensional Analysis for Nonlinear Wave Forces Acting on Dual Vertical Columns and Their Nonlinear Wave Transformations

복수 연직 주상구조물에 작용하는 비선형파력과 구조물에 의한 비선형파랑변형의 3차원해석

  • Lee, Kwang-Ho (Department of Civil Engineering, Nagoya University) ;
  • Lee, Sang-Ki (Division of Civil and Environmental Engineering, Korea Maritime University) ;
  • Shiin, Dong-Hoon (Division of Civil and Environmental Engineering, Korea Maritime University) ;
  • Kim, Do-Sam (Division of Civil and Environmental Engineering, Korea Maritime University)
  • 이광호 (나고야대학 대학원 공학연구과) ;
  • 이상기 (한국해양대학교 건설환경공학부) ;
  • 신동훈 (한국해양대학교 건설환경공학부) ;
  • 김도삼 (한국해양대학교 건설환경공학부)
  • Published : 2008.02.29
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Abstract

In the present work, wave transformation by vertical columns and its wave forces acting on them are discussed using a direct 3-D numerical model based on the VOF (Volume Of Fluid) method. The numerical results for wave transformations and wave forces are critically compared to an advanced experimental data, and provide the verification of the numerical model used in the present study. Overall model-data comparisons are good. After verification of the numerical model, it is used to simulate wave fields around dual vertical columns with arbitrary cross section, and the characteristics of nonlinear wave forces and wave transformations according to the variations of different cross section types of vertical columns, an interval of vertical columns and incident wave angle are discussed.

본 연구에서는 복수의 대형 연직 주상구조물을 중심으로 구조물에 작용하는 비선형파력과 구조물에 의한 비선형파랑변형을 검토하며, 수치해석의 이론으로 쇄파나 강비선형 파랑을 고정도로 해석할 수 있는 Navier-Stokes방정식에 근거한 3차원 VOF(Volume Of Fluid)법을 적용하였다. 본 수치해석의 타당성을 검증하기 위해 파랑변형과 파력에 대한 기존의 수리실험결과와 본 수치해석결과를 비교 검토하였으며, 이로부터 2기로 구성된 임의형상의 연직 주상구조물에 대해 구조물 형상, 구조물 배치간격, 파의 입사각도 변화에 따른 파력과 파랑변형의 특성을 논하였다.

Keywords

References

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