Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Wave Forces Acting on Vertical Cylinder and Their Wave Transformations by 3-Dimensional VOF Method

3차원 VOF법에 의한 연직 주상구조물에 작용하는 파력과 구조물에 의한 파랑변형 해석

  • Lee, Kwang-Ho (Department of Civil Engineering, Nagoya University) ;
  • Lee, Sang-Ki (Department of Civil and Environmental Engineering, Graduate School, Korea Maritime University) ;
  • Sin, Dong-Hoon (Department of Civil and Environmental Engineering, Graduate School, Korea Maritime University) ;
  • Kim, Chang-Hoon (Department of Civil and Environmental Engineering, Graduate School, Korea Maritime University) ;
  • Kim, Do-Sam (Division of Civil and Environmental Engineering, Korea Maritime University)
  • 이광호 (일본나고야대학교 대학원 공학연구과) ;
  • 이상기 (한국해양대학교 대학원 토목환경공학과) ;
  • 신동훈 (한국해양대학교 대학원 토목환경공학과) ;
  • 김창훈 (한국해양대학교 대학원 토목환경공학과) ;
  • 김도삼 (한국해양대학교 건설환경공학부)
  • Published : 2007.04.30
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Abstract

As the economy grows and the population increases, we need to develop our coastal area and make use of it for various purposes. Specifically, investigation of the wave interactions on and around the vertical cylinders is very important in the design of the offshore or coastal structures. The nonlinear potential analysis developed so far, although very useful, has been found to be limited in application, as strong nonlinear waves generated by the interference between multilayered cylinders and wave impact forces by breaking waves can hardly be estimated. In this study, using a 3-Dimensional volume tracking method VOF(Volume of Fluid), based on Namer-Stokes equations, was developed to simulate highly nonlinear effects, such as breaking waves at the interface or complicated interference waves among structures. A numerical method for nonlinear interaction wave and vertical cylinders is newly proposed. The wave forces and wave transformations computed by the newly proposed numerical simulation method were compared to the other researcher's experimental results, and the results agree well. Based on the validation of this study, this numerical method is applied to the two vertical cylinders to discuss their nonlinear wave forces and wave transformations, according to the variations of separate distance of vertical cylinders.

Keywords

References

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