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

The Society of Naval Architects of Korea (대한조선학회)
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Analysis of a Two-Dimensional Section of Deforming Yacht Sails

변형을 고려한 요트 세일의 2차원 단면 해석

  • Lee, Hee-Bum (Department of Industrial Engineering and Naval Architecture, Seoul National University) ;
  • Rhee, Shin-Hyung (Department of Naval Architecture and Ocean Engineering, Research Institute of Marine Systems Engineering, Seoul National University) ;
  • Yoo, Jae-Hoon (Department of Ocean Engineering, Mokpo National University)
  • 이희범 (서울대학교 대학원 산업조선공학부) ;
  • 이신형 (서울대학교 조선해양공학과 해양시스템공학연구소) ;
  • 유재훈 (목포대학교 해양시스템공학과)
  • Received : 2011.03.21
  • Accepted : 2011.06.01
  • Published : 2011.08.20
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Abstract

Although a yacht sails operate with large displacement due to very thin thickness, many studies for flow around yacht sails have not considered the sail deformation. The sail deformation not only caused a change in the center of effect(CE) on the sail but also a change in the thrust of the sail. The change of the CE and thrust affects the center of lateral resistance(CLR) and side forces of the hull, and the balance of the yacht. These changes affect the motion of the yacht which changes the velocity of the yacht. Thus, when analyzing the flow around yacht sails, the sail deformation should be considered. In the present study, fluid-structure-interaction(FSI) analysis of a two dimensional section of yacht sails was performed to consider the effects of sail deformation on the lift and drag performance. FSI and moving mesh methods were studied. Computational methods were verified using benchmark test cases such as the flow around horizontal and vertical cantilever beams. Shape deformation, pressure distribution, lift forces and separation flow were compared for both rigid and deformable sail.

Keywords

References

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