画像計測による船首形状と相対水位変動に関する実験的研究

抄録

The experimental investigation was carried out with two frigate models whose above water bow forms were different respectively. The investigation consists of three tests including restrained in still water, forced oscillation in still water and restrained in regular waves. For visualizing the free surface the illuminating wetted surface method is introduced and unsteady wave profiles as well as steady ones are measured as image data. Moreover, the data are transformed into time histories of wave height at each Station. A harmonic analysis is carried out to analyze time histories data. The effect of above water bow form is recognized as the difference of wave height.