| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for forming of a ship stern structure with an asymmetrical torsion flow control fin attached thereon, the method equalizing a distribution of a flow velocity flowing into a propeller and reducing energy loss due to rotation of a propeller rear flow during sailing. <P>SOLUTION: The method includes (a) a step of preparing a plurality of stern additional portions 121 to 124, (b) a step of modeling a fluid flow formed around a sailing ship 100, and (c) a step of determining an attachment position, size, attachment angle and torsion angle for each of the plurality of stern additional portions to reduce energy loss of the ship based on the fluid flow modeling. Not all but at least some of the plurality of stern additional portions have different attachment positions and lengths, and have at least one of a structure of torsion around a different rotation shaft and a relatively asymmetrical cross section structure. <P>COPYRIGHT: (C)2013,JPO&INPIT |
