二次元物体に働く非線形流体力について : 第1報散乱問題

概要

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A new method which simplifies the calculation of higher-order hydrodynamic forces is proposed. Solving the integral equation on boundary surfaces including the free-surface by this method, the non-1inear terms on free-surface may be directly computed. Making use of this method, the diffraction potentials are calculated up to the second-order terms in two-dimensional problem. Results obtained are as follows : ( 1 ) The numerical results by the method agree well with existing results in radiation and diffraction linear problems. ( 2 ) Second-order diffraction forces due to non-1inear free-surface boundary condition is nearly proportional to the wave-number of incident wave. (3) Total second-order diffraction forces computed by the method show good coincidence with the experimental results.
社団法人日本船舶海洋工学会の論文