A ship (1) provided with a bubble resistance reduction device for supplying air bubbles or a gas-liquid mixed fluid from an air bubble supply hole (10) provided to a hull (2), and leading the air bubbles to the bottom of the ship to reduce the friction resistance of the hull (2), wherein a bow bulb (3) provided to the bow of the ship is configured from a downward-flow-promoting type of bow bulb having an increased effect of leading flowing water in the bow portion to the bottom of the ship. The tip position (Pb) of a ship-bottom flat part (2f) is between X2, which is rearward from a forward perpendicular (F.P.) by at least 0.7% of a length between perpendiculars (Lpp), and X1, which is rearward by no more than 5% of the length between perpendiculars (Lpp). Air bubbles supplied from the air bubble supply hole (10) can thereby be led efficiently to the ship-bottom flat part (2f), and the air bubble supply energy for reducing the hull resistance can be reduced.
Ship provided with bubble resistance reduction device, and method for reducing resistance of ship
2015-12-23
Patent
Elektronische Ressource
Englisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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