Rankine Source法による非定常波動問題の計算について

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タイトル別名
  • An Application of Rankine Source Method for Unsteady Free Surface Flows
  • Rankine Sourceホウ ニ ヨル ヒテイジョウ ハドウ モンダイ ノ

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抄録

Rankine Source Method is applied for unsteady free surface flows in this paper. In order to clarify the radiation condition of Rankine Source Method, eigen values and eigen vectors of the matrix obtained from a discrete boundary integral equation are investigated. And it is found that the radiation condition is satisfied by introducing a small variable ε which is equivalent to the artifice due to Rayleigh. For a examination of the new radiation condition, a wave field induced by a periodic source under the free surface is calculated. Calculated results are in good agreement with analytical ones. Wave forces acting on a virtical circlar cylinder with forward speed are also calculated. Results suggest that the present method is applicable to the calculation of the 3-dimensional unsteady free surface flow around a ship with forward speed.

収録刊行物

  • 関西造船協会誌

    関西造船協会誌 213 (0), 21-29, 1990

    公益社団法人 日本船舶海洋工学会

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