To reduce wave making resistance at a bow part in a displacement type ship.SOLUTION: At least while a ship 1, 1A is travelling in the advance direction at a planned travel speed Vsd, in a suction opening part 11 provided at a bow part 2a, by sucking water Wa at an average relative suction flow rate Vam equal to or greater than 50% and equal to or less than 150% of the planned travel speed Vsd, interference waves are generated, and the interference waves are made to interfere with bow waves generated in the bow part 2a. Furthermore, from an inflow opening part 31 provided above the suction opening part 11 and at the position of cutting the waver level while travelling, water Wb in the vicinity of the water level while travelling is made to flow in at the average relative inflow flow rate Vbm equal to or greater than -25% and equal to or less than +25% of the planned travel speed Vsd, generation of waves generated in the vicinity of the water level of the bow part 2a is suppressed.SELECTED DRAWING: Figure 1
【課題】排水量型の船舶において、船首部における造波抵抗を低減する。【解決手段】少なくとも、船舶1、1Aが計画航走速度Vsdで前進方向に航走しているときに、船首部2aに設けた吸引開口部11において、計画航走速度Vsdの50%以上でかつ150%以下の平均相対吸引流速Vamで水Waを吸引することで、干渉用波を発生させて、この干渉用波を船首部2aで発生する船首波に干渉させる。さらには、吸引開口部11の上側で、かつ、航走時の水面を切る位置に設けた流入開口部31から航走時の水面の近傍の水Wbを、計画航走速度Vsdの-25%以上でかつ+25%以下の平均相対流入流速Vbmで流入させることで、船首部2aの水面近傍で発生する波の発生を抑制する。【選択図】図1
WAVE MAKING RESISTANCE REDUCTION SYSTEM FOR SHIP, SHIP AND WAVE MAKING RESISTANCE REDUCTION METHOD FOR SHIP
船舶の造波抵抗低減システム、船舶及び船舶の造波抵抗低減方法
2023-05-16
Patent
Electronic Resource
Japanese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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