| 摘要 |
PROBLEM TO BE SOLVED: To improve a wake distribution in a lower semicircle by leading a water flow along a hull surface on a lower side immediately before a propeller to the lower semicircle of a rotating surface of the propeller, to enhance propeller efficiency by exciting a turning flow opposite to a rotating direction of the propeller, and to improve the fuel consumption of a vessel. SOLUTION: The vessel comprises bilge fins 4 on shell both gunwales of a bilge portion behind a rear end of a hull parallel portion, and stern end fins 3 on the shell both gunwales near a propeller bossing at a stern end. A profile of the bilge fin 4 tilts upward in a stern direction. A profile of the rear end portion of the stern end fin tilts in an opposite direction to the rotating direction when the propeller moves forward. A profile of the rear end portion of the stern end fin 3 tilts in the opposite direction to the rotating direction of the propeller 2. COPYRIGHT: (C)2009,JPO&INPIT
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