肥大船の斜波中短波長域の波浪変動圧について

概要

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Results of numerical and experimental study on hydrodynamic pressure on a full ship in oblique short waves are presented. Ship length of VLCC is long compared with wave length in sea. Hydrodynamic pressure on a full ship in oblique short waves are measured to investigate the wave loads of VLCC. The hydrodynamic pressure which are predicted with New Strip Method (NSM) are compared with the measured ones. The predicted results with NSM are not in good agreement with the measured ones in oblique short waves. One cause for the error is the inexact body boundary condition in short waves. The other is not to consider the effect of the diffraction wave from bow, stern and bottom. The modified method for the diffraction wave term of NSM which is calculated with the exact two dimensional body boundary condition and considered the effect of the diffraction wave from bow, stern and bottom is developed. Symmetric term of diffraction pressure is used the velocity potential for wave frequency ω_0. The pressure distributions with this modified method for NSM are in good agreement with the measured ones in oblique short waves.
社団法人日本船舶海洋工学会の論文
1994-09-25