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풍상범주중인 세일링 요트의 세일 변형 해석 및 자세를 고려한 속도 추정 방법 개발

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Authors
박미연
Advisor
이신형
Major
공과대학 조선해양공학과
Issue Date
2014-02
Publisher
서울대학교 대학원
Keywords
세일링 요트
Description
학위논문 (석사)-- 서울대학교 대학원 : 조선해양공학과, 2014. 2. 이신형.
Abstract
Yacht sails, which are made out of thin fiber, are deformed by wind pressure. This deformation change fluid force (side force, driving force) on the sails and the attitude of the yacht. Therefore, it is important to reflect the variations of the sail shape when performance analysis on yacht sails is studied. In the present study, fluid-structure interaction(FSI) analysis is used to consider sail's deformation and fluid force on the mutation. Using the method, the change of sail shape, pressure distribution, separation, vortex, Lift and Drag on the sails are calculated.
One of the most important factors in sailing yacht design is accurate velocity prediction. Velocity prediction programs (VPPs) are widely used to predict velocity of sailing yachts. VPPs, which are primarily based on experimental data and experience of long years, suffer limitations when applied in realistic conditions. Thus, in the present study, a high fidelity velocity prediction method using Computational Fluid Dynamics (CFD) is proposed. Using the developed method, velocity and motion of a 30 feet sloop yacht, which was developed by Korea Research Institute of Ship and Ocean (KRISO) and termed KORDY30, were predicted in upwind sailing condition.
Language
Korean
URI
https://hdl.handle.net/10371/122735
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Naval Architecture and Ocean Engineering (조선해양공학과)Theses (Master's Degree_조선해양공학과)
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