Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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A Study on the Characteristics of Pontoon Type Floating Breakwaters in Regular Waves

규칙파중 상자형 부유식 방파제 특성에 대한 연구

  • 김도영 (홍익대학교 조선해양공학과) ;
  • 송무석 (홍익대학교 조선해양학과) ;
  • 김용섭 (홍익대학교 조선해양공학과) ;
  • 김현주 (한국해양연구소 해양개발시스템 연구본부)
  • Published : 2000.08.01
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Abstract

An experimental and numerical investigation was made to examine the characteristics of pontoon type floating breakwaters(FBW) in regular waves. Motion responses of FBW and wave transmission coefficients are observed and compared with the results based on the linear potential theory. The linear potential theory is found to be a successful tool to investigate the characteristics of the floating breakwaters. We confirm that there exists a minimum wave transmission coefficient which is a function of wave-length/beam and beam/draft ratio. As beam/draft ratio increases the value of wave-length/beam ratio where the minimum, wave transmission coefficient occurs increases. Excessive mooring stiffness can deteriorate the performance of the floating breakwaters.

규칙파중 상자형 부유식 방파제의 특성을 살펴보기 위하여 실험과 이론 연구를 수행하였다. 선형포텐셜이론으로 부유식방파제의 특성을 잘 해석할 수 있음을 확인하였다. 투과계수는 파장/부체폭과 부체폭/부체흘수의 비의 함수이며 최소 투과계수가 나타나는 점이 있음을 확인하였다. 부체폭/부체흘수 비가 클수록 최소 투과계수를 가지는 파장/부체폭의 값이 커지며, 과도한 계류력은 부유식방파제의성능을 저하시킬 수 있다.

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References

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