ランキンソース法による耐航性能推定法について(その1) : 船体近傍波動場の解像度向上に関する検討

概要

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Rankine source method has been recognized as a practical computation tool for ship hydrodynamic problems in recent years. By using Rankine source method for the various seakeeping problems, such as ship speed decline in waves, wave-induced loads, and so on, improvements on the estimated precision of them can be expected. However, there are still some subjects to be settled like that optimal shape and arrangement of the free surface panel, difficulty in accurate computation of resistance increase in waves, etc. In this paper, authors paid attention on the insufficiency of the free surface panel resolution around the ship hull. To settle it, the computation method, which introduces the arbitrary panel topology on the free surface, was proposed. Computed results by present method were compared with experiments or other computation method for vaious ships, and it is shown that the proposed method can estimate fluid dynamic forces on the ship hull, and ship motions in waves with certain accuracy.
社団法人日本船舶海洋工学会の論文
2000-09-25