규칙파 중 갑판침입수에 미치는 선수 플레어 각도의 영향에 관한 실험적 연구
An Experimental Study on the Effects of Bow Flare Angle about Green Water in Regular Waves
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참고문헌
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초록
It is very important to investigate and understand the motion of a FPSO on waves because green water phenomenon occurs owing to the relative motions between incident waves and a ship on them. In this research, both experimental and some numerical approaches have been performed in head sea conditions with regular waves. As an object model of this research, a FPSO model is set free to heave and pitch during the experiments. Also, the motions of the FPSO model which are the results of the experiments are used for the corresponding numerical computations. The purpose of this study is to clarify the effect of bow flare on green water load. In this research, it is found that the amount of green water entered from the side of bow is decreased by the increase of bow flare angle. Moreover, the relation between the green water on the bow upper deck and the impact load on the vertical wall located at turrethead is investigated. The results of this research could be used as one of the fundamental data to design bow flares. Also, an optimized bow flare angle is proposed in this study.
Abstract
It is very important to investigate and understand the motion of a FPSO on waves because green water phenomenon occurs owing to the relative motions between incident waves and a ship on them. In this research, both experimental and some numerical approaches have been performed in head sea conditions with regular waves. As an object model of this research, a FPSO model is set free to heave and pitch during the experiments. Also, the motions of the FPSO model which are the results of the experiments are used for the corresponding numerical computations. The purpose of this study is to clarify the effect of bow flare on green water load. In this research, it is found that the amount of green water entered from the side of bow is decreased by the increase of bow flare angle. Moreover, the relation between the green water on the bow upper deck and the impact load on the vertical wall located at turrethead is investigated. The results of this research could be used as one of the fundamental data to design bow flares. Also, an optimized bow flare angle is proposed in this study.
참고문헌 (12)
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- 정광열, "선수부 갑판침입수의 수치시뮬레이션에 대한 기초연구", 대한조선학회 논문집, 47(2), pp.188~195 (2010), 대한조선학회
- Leonhardsen, R.L., "Experience and Risk Assessment of FPSOs in Use on the Norwegian Continental Shelf: Descriptions of Events", 11th International Society of Offshore and Polar Engineering Conference, 1, pp.309~314 (2001)
- The Effect of Bow Shape on Deck Wetness in Head Seas, "Lloyd, A.J.R.M.", RINA, ~ (1985)
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- 신기석, "규칙파 중 선수갑판 Green Water에 대한 수치계산 및 실험", 대한조선학회 논문집, 42(4), pp.350~356 (2005), 대한조선학회