Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Fluid-Structure Interaction Analysis on the Deformation of Simplified Yacht Sails

단순형태 세일의 변형에 대한 유체-구조 연성 해석

  • Bak, Sera (Dept. of Ocean Engineering, Mokpo National University) ;
  • Yoo, Jaehoon (Dept. of Ocean Engineering, Mokpo National University) ;
  • Song, Chang Yong (Dept. of Ocean Engineering, Mokpo National University)
  • 박세라 (목포대학교 해양시스템공학과) ;
  • 유재훈 (목포대학교 해양시스템공학과) ;
  • 송창용 (목포대학교 해양시스템공학과)
  • Received : 2012.11.07
  • Accepted : 2013.01.23
  • Published : 2013.02.20
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Abstract

Since most of yacht sails are made of thin fabric, they form cambered sail shape that can efficiently generate lift power by aerodynamic interaction and by external force delivered from supporting structures such as mast and boom. When the incident flow and external force alter in terms of volume or condition, the shape of sail also change. This deformation in shape has impact on the peripheral flow and aerodynamic interaction of the sail, and thus it is related to the deformation of the sail in shape again. Therefore, the precise optimization of aerodynamic performance of sail requires fluid-structure interaction (FSI) analysis. In this study, the simplified sail without camber was under experiment for one-way FSI that uses the result of flow analysis to the structural analysis as load condition in an attempt to fluid-structure interaction phenomenon. To confirm the validity of the analytical methods and the reliability of numerical computation, the difference in deformation by the number of finite element was compared. This study reproduced the boundary conditions that sail could have by rigs such as mast and boom and looked into the deformation of sail. Sail has non-linear deformation such as wrinkles because it is made of a thin fabric material. Thus non-linear structural analysis was conducted and the results were compared with those of analysis on elastic material.

Keywords

References

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  2. Numerical Study on the Side-Wind Aerodynamic Forces of Chambered 3-D Thin-Plate Rigid-Body Model vol.43, pp.2, 2015, https://doi.org/10.5139/JKSAS.2015.43.2.97