Development of analytical method on high-lift composite sail by using fluid-structure interaction system

Research Project

Project/Area Number	26420833
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Naval and maritime engineering
Research Institution	National Institute of Maritime, Port and Aviation Technology
Principal Investigator	Takami Tomoki 国立研究開発法人海上・港湾・航空技術研究所, その他部局等, 研究員 (50586683)
Co-Investigator(Kenkyū-buntansha)	田原裕介国立研究開発法人海上・港湾・航空技術研究所, その他部局等, 研究員 (10264805) 瀧本忠教国立研究開発法人海上・港湾・航空技術研究所, その他部局等, 研究員 (20466238) 藤本修平国立研究開発法人海上・港湾・航空技術研究所, その他部局等, 研究員 (80586686)
Project Period (FY)	2014-04-01 – 2017-03-31
Project Status	Completed (Fiscal Year 2016)
Budget Amount *help	¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000) Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000) Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords	流体構造連成 / 高揚力複合帆 / 画像解析法 / 帆船 / Structure-from-Motion法 / Multi-View-Stereo法 / RANS法CFD
Outline of Final Research Achievements	A coupling system composed of the Reynolds Averaged Navier Stokes (RANS)-based CFD and non-linear FEM is proposed to establish an evaluation method on the performance of high-lift composite sails accounting for the elastic deformation of the soft sail. Besides, a three dimensional shape reproducing method by using the imagery analysis method is adopted in measuring the deformation of the soft sail, while it is validated by comparing with the wind-tunnel experiment with a scaled sail model. It turned out that the developed coupling system is able to estimate the hydrodynamic forces and the elastic deformation with a good accuracy. Further tasks regarding its application to the multi-sail are also turned out through the wind-tunnel test with a multi-sail model.