단순형태 세일의 변형에 대한 유체-구조 연성 해석
Fluid-Structure Interaction Analysis on the Deformation of Simplified Yacht Sails
2
조회
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다운로드
6
인용
0
참고문헌
키워드
초록
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.
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.
참고문헌 (7)
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- Kim, W., "Development of Computational Methods for Viscous Flow around a Commercial Ship Using Finite-Volume Methods", Journal of the Society of Naval Architects of Korea, 37(4), pp.19~30 (2000)
- 이희범, "변형을 고려한 요트 세일의 2차원 단면 해석", 대한조선학회 논문집, 48(4), pp.308~316 (2011), 대한조선학회
- Spalatelu-Lazar, M., "Modelling and Opimization of Sails", Computers and Structures, 86(2008), pp.1486~1493 (2008)
- Trimarchi, D., "Fluid-Structure Interactions of anisotropic thin composite materials for application to sail aerodynamics of a yacht in waves", 12th Numerical Towing Tank Symposium (2009)
- 유재훈, "요트의 Main세일과 Jib세일 사이의 간섭 효과에 대한 수치해석", 대한조선학회 논문집, 42(1), pp.24~33 (2005), 대한조선학회
- Yoo, J., "Computational and Experimental Study on Performance of Sails of a Yacht", Ocean Engineering, 33(10), pp.1322~1342 (2006)