細長体近似による船体波紋の計算

概要

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A new formulation of the slender body theory for a ship with constant forward speed is developed. It is based on an asymptotic expression for the Kelvin source and may be regarded as a substitute for the Neumann-Kelvin approximation. Wave patterns of a point source in a uniform stream are computed by the original formula of the Kelvin source and by the asymptotic formula. Wave patterns of a submerged body which is represented by a source distribution along the longitudinal axis are also computed by both methods. They agree well near the longitudinal axis. Then computation of the wave pattern for a model of Series 60, C_B=0.6 is carried out, and the result is compared with measurement. It is concluded that the present theory is useful as an approximate method of prediction of ship waves near the hull.
社団法人日本船舶海洋工学会の論文