船体FINの船尾流れおよび性能改善に与える影響の数値解析

In this study, the applicability of CFD to design optimal arrangement hull FIN, which is one energy-saving devices, was investigated. Considering calculation environment at site a shipyard, with overset grid approach applied because it possible maintain accuracy for estimating effect small number grids. The FIN attached JBC form, and installation position in front/rear vertical directions on As result, found that main reason performance improvement by wake gain moving stern vortex outer circumference propeller circle. From this, also shown method effective understanding mechanism devices.