리그변형을 고려한 세일 성능의 유체-구조 연성해석

• Published in: 大韓造船學會 論文集 Vol. 55; no. 5; pp. 421 - 430
• Main Authors: 박세라(Sera Bak), 유재훈(Jaehoon Yoo)
• Format: Journal Article
• Language: Korean
• Published: 대한조선학회 2018
• Subjects: 조선공학; FSI(Fluid-structure interaction analysis; Yacht(요트); Sail(세일); Aerodynamics(공기역학); Standing rig(스탠딩 리그); 유체-구조 연성해석; -
• ISSN: 1225-1143; 2287-7355
• DOI: 10.3744/SNAK.2018.55.5.421

The shape of a yacht sail made of thin fabric materials is easily deformed by wind speed and direction and it is affected by the deformation of the standing rig such as mast, boom, shrouds, stays and spreaders. This deformed sail shape changes the air flow over the sail, it makes the deformation of the sail and the rig again. To get a sail performance accurately these interactive behavior of sail system should be studied in aspects of the aerodynamics and the fluid-structure interaction. In this study aerodynamic analysis for the sail system of a 30 feet sloop is carried out and the obtained dynamic pressure on the sail surface is applied as the loading condition of the calculation to get the deformations of the sail shape and the rig. Supporting forces by rig are applied as boundary condition of the structure deformation calculations. And the characteristics of the air flow and the dynamic pressure over the deformed sail shape is investigated repeatedly including the lift force and the location of CE.