有限要素法による浮遊式消波装置の基礎的研究

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書誌事項

タイトル別名
  • Fundamental Study on Floating Type Wave Absorber by the Finite Element Method
  • 有限要素法による浮遊式消皮装置の基礎的研究
  • ユウゲン ヨウソホウ ニヨル フユウシキ ショウヒ ソウチ ノ キソテキ ケン

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抄録

The present paper deals with the diffraction problems of water waves due to a floating type wave absorber which consists of the plural vertical plates. The method of solution is based on the finite element method combined with the source distribution method. Namely, by a fictitious juncture boundary, a fluid domain is divied into both outer regionand inner region. The velocity potential for the outer region is given by utilizing the source distribution on the fictitious juncture boundary. On the other hand, the velocity potential for the inner region is determined by the finite element method. Numerical results which were applied to the plural vertical plates show that the zero reflection and complete transmission are possible, and the number of the occurrence of the complete transmission is in proportion to the number of the fluid colums between the plates. The wave exciting forces (X-direction) which were calculated by the plural vertical plates show that the wave excitationless frequency existed. The two plates with the external damping gave better effect of the wave absorption than the two plates in the vicinity of a wave length where the motion of the fluid column between the plates is resonant.

収録刊行物

  • 関西造船協会誌

    関西造船協会誌 174 (0), 17-24, 1979

    公益社団法人 日本船舶海洋工学会

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