PROBLEM TO BE SOLVED: To provide a hub eddy suppressing device and ship capable of effectively suppressing a hub eddy without greatly increasing propulsion resistance.SOLUTION: A hub eddy suppressing device 10 for suppressing the generation of a hub eddy behind a boss 4 when a propeller 3 of a ship 1 is rotated, is equipped with an axial rotation symmetric body 12 provided behind the boss so as to occupy at least a part of a hub eddy generation area 8 including a rotation center shaft of the propeller. In the axial rotation symmetric body, a symmetric axis of the axial rotation symmetric body is disposed along the rotation center shaft O of the propeller. The axial rotation symmetric body is configured to be immovable regardless of the steering of the ship.
【課題】推進抵抗の大幅な増大を引き起こすことなくハブ渦を効果的に抑制し得るハブ渦抑制装置及び船舶を提供する。【解決手段】船舶1のプロペラ3の回転時にボス4の後方におけるハブ渦生成を抑制するためのハブ渦抑制装置10は、前記プロペラの回転中心軸を含むハブ渦生成領域8の少なくとも一部を占めるように、前記ボスの後方に設けられる軸回転対称体12を備え、前記軸回転対称体は、該軸回転対称体の対称軸が前記プロペラの回転中心軸Oに沿うように配置されるとともに、前記軸回転対称体は、前記船舶の操舵によらず不動であるように構成される。【選択図】図1
HUB EDDY SUPPRESSING DEVICE AND SHIP
ハブ渦抑制装置及び船舶
2015-07-02
Patent
Electronic Resource
Japanese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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