二次元物体に働く非線形流体力について : 第2報放射問題

概要

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The second-order potentials, pressures and forces are calculated by the Boundary Integral Equation Method, which was proposed in previous report (1), in two-dimensional radiation problems. The second-order forces are decomposed into each non-1inear terms and the quantitative comparison is made and discussed. The experiments in forced heave and sway motions are carried out and compared with the calculations. Results obtained are as follows: (1) The numerical results by the present method agree fairly well with existing results and experimental results in first and second-order radiation problems. (2) In radiation problems, the non-1inearity of the body-boundary condition is dominant and the second-order forces are nearly proportional to the wave-number of the motion. (3) Total second-order forces show good coincidence with the experimental results.
社団法人日本船舶海洋工学会の論文