| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce pressure loss of a hull by canceling or weakening a longitudinal vortex generated inside a gunwale direction of respective skeg parts, in a twin-skeg ship including a right-and-left pair of skeg parts installed on a stern part to respectively support propeller shafts. <P>SOLUTION: The twin-skeg ship 1 includes the right-and-left pair of skeg parts 5 which is spaced each other in the gunwale direction on the stern part 3 and each supports the propeller shaft 4. The ship further includes a central skeg part 8 which is positioned between the right-and-left pair of skeg parts 5 on the stern part 3 and a stem side further than a stern-side end 5a of the respective skeg parts 5, and which generates a longitudinal vortex Sc that is reverse rotation of the longitudinal vortex Si generated inside the gunwale direction of the respective skeg parts 5 to cancel or weaken the longitudinal vortex Si generated inside the gunwale direction of the respective skeg parts 5. <P>COPYRIGHT: (C)2012,JPO&INPIT |
