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

  • 제42권3호
  • /
  • Pages.212-219
  • /
  • 2005
  • /
  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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스펙트럴 방법에 의한 실해역파 재현 및 파 방향 해석

Generation of Real Sea Waves based on Spectral Method and Wave Direction Analysis

  • 이진호 (삼성중공업 조선해양연구소) ;
  • 최재웅 (삼성중공업 조선해양연구소) ;
  • 강윤태 (삼성중공업 조선해양연구소) ;
  • 하문근 (삼성중공업 조선해양연구소)
  • 발행 : 2005.06.01
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초록

Real sea waves in a towing wave basin have been generated using random periodic motion of the segmented wave makers and the wave reflections of sidewalls. Theoretically, the real sea waves can be described by the superposition of many random oblique waves. This paper introduces numerical real sea wave generation in a rectangular wave basin using spectral method that uses a superposition of orthogonal functions which have to satisfy the Laplace equation. Oblique regular waves, long crested irregular waves and real sea waves were simulated and met the requirement of sidewall wave reflection and wave absorption. MLM (Maximum Likelihood Method) and Spatial Fourier Transform were used in order to obtain propagated wave direction characteristics. The estimated results proved the usefulness of the method and the performances showed reasonable directional patterns comparing with generating patterns.

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참고문헌

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