CFD를 이용한 벌크화물선의 선형개발
Hull Form Development of a Bulk Carrier using CFD
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조회
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다운로드
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참고문헌
키워드
초록
CFD tools were intensively used to develop a bulk carrier hull form of 180,000 DWT. HCAD and WAVIS were utilized to vary and evaluate the hull forms. LCB and framelines were systematically changed starting from a mothership. Resistance characteristics have been assessed by evaluating the wave-pattern resistance and viscous pressure drag along with the wave profile and wake distribution. It was found that the hull forms obtained from LCB variations were not good enough to satisfy the target resistance coefficient because of large wave generation at the design speed. After choosing the appropriate one from the LCB variation series, bow and stern framelines have been modified to improve wave-making characteristics and wake distribution, respectively. Model tests were performed to confirm the CFD results. Furthermore, the effect of free surface on CFD application was investigated, and a few comments are given on the difference between WAVIS version 1.4 and 2.0.
Abstract
CFD tools were intensively used to develop a bulk carrier hull form of 180,000 DWT. HCAD and WAVIS were utilized to vary and evaluate the hull forms. LCB and framelines were systematically changed starting from a mothership. Resistance characteristics have been assessed by evaluating the wave-pattern resistance and viscous pressure drag along with the wave profile and wake distribution. It was found that the hull forms obtained from LCB variations were not good enough to satisfy the target resistance coefficient because of large wave generation at the design speed. After choosing the appropriate one from the LCB variation series, bow and stern framelines have been modified to improve wave-making characteristics and wake distribution, respectively. Model tests were performed to confirm the CFD results. Furthermore, the effect of free surface on CFD application was investigated, and a few comments are given on the difference between WAVIS version 1.4 and 2.0.
참고문헌 (5)
- Kim, D.H, "Analysis of the Nonlinear Wave-Making problem of Practical Hull Forms using Panrl Method", Journal of the Society of Naval Architects of Kore, 37(4), pp.1~10 (2000)
- Kim, W.J, "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)
- Kim, W.J, "Development of Wave and Viscous Flow Analysis System for Computational Evaluation of Hull Forms", Journal of Ship and Ocean Technology, 4(3), pp.33~45 (2000)
- Lee, C.J, , 석사, pp.2000
- 박일룡, "Level-Set법을 이용한 일반상선의 저항성능 해석", 대한조선학회 논문집, 41(2), pp.79~89 (2004), 대한조선학회