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

The Society of Naval Architects of Korea (대한조선학회)
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FSI Simulation of the Sail Performance considering Standing Rig Deformation

리그변형을 고려한 세일 성능의 유체-구조 연성해석

  • Bak, Sera (Department of Naval Architecture and Ocean Engineering, Mokpo National University) ;
  • Yoo, Jaehoon (Department of Naval Architecture and Ocean Engineering, Mokpo National University)
  • 박세라 (목포대학교 조선해양공학과) ;
  • 유재훈 (목포대학교 조선해양공학과)
  • Received : 2018.04.17
  • Accepted : 2018.07.23
  • Published : 2018.10.20
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Abstract

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.

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References

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