시추선 문풀의 내부 유동제어에 의한 부가저항 저감
Reduction of Added Resistance by Internal Flow Control in the Moonpool of a Drillship
2
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
The internal flows of moonpool usually causes huge added resistance on drillships, and those are very complex to analyze. Therefore,not only experimental approaches but also numerical simulations are required for better investigations when dealing with the hydrodynamic problems of moonpool. In the present research, numerical simulations are used to find out why the resistance increases by moonpool on a running drillship. That is, the three-dimensional numerical simulations and model tests are carried out to examine the characteristics of internal flow and added resistance by changing the section of the moonpool in both longitudinal and transverse directions. Finally, based on the present studies, an optimized shape of the moonpool is suggested, which effectively reduces added resistance, and that is confirmed with three-dimensional numerical simulations and model tests.
Abstract
The internal flows of moonpool usually causes huge added resistance on drillships, and those are very complex to analyze. Therefore,not only experimental approaches but also numerical simulations are required for better investigations when dealing with the hydrodynamic problems of moonpool. In the present research, numerical simulations are used to find out why the resistance increases by moonpool on a running drillship. That is, the three-dimensional numerical simulations and model tests are carried out to examine the characteristics of internal flow and added resistance by changing the section of the moonpool in both longitudinal and transverse directions. Finally, based on the present studies, an optimized shape of the moonpool is suggested, which effectively reduces added resistance, and that is confirmed with three-dimensional numerical simulations and model tests.
참고문헌 (11)
- B. Molin, "On the piston and sloshing modes in moonpools", The Journal of Fluid Mechanics, 430, pp.27~50 (2001)
- Gaillarde G, "Water motion in moonpools - Empirical and numerical approach. Association Technique Maritime et Aeronautique", ~ (2004)
- 정광열, "선수부 갑판침입수의 수치시뮬레이션에 대한 기초연구", 대한조선학회 논문집, 47(2), pp.188~195 (2010), 대한조선학회
- 김도정, "해양환경정화용 선박의 중앙개구부 특성에 관한 실험적 연구", 한국해양공학회지, 20(2), pp.46~51 (2006), 한국해양공학회
- 이영길, "밀도함수법을 이용한 2차원 슬로싱 현상의 수치시뮬레이션", 대한조선학회 논문집, 46(6), pp.650~658 (2009), 대한조선학회
- Park, J.J, "Development of design technologies for optimum moonpool shapes of drill ship", The 26th International Conference on Offshore Mechanics and Arctic Engineering, OMAE2007 - 29182 (2007)
- Song C.S, "Flow analysis of a two-dimensional moonpool in a moving vessel", Annual autumn meeting of the Korean society of ocean engineers, pp.225~230 (2003)
- STX-Huisman, "Globe Trotter-10000 Design Drillship", ~ (2008)
- 유재훈, "Moonpool과 Azimuth Thruster를 장치한 Drillship의 저항추진성능", 대한조선학회 논문집, 41(6), pp.33~39 (2004), 대한조선학회
- 이영길, "수치시뮬레이션기법을 이용한 거위목 벌브의 저항성능에 관한 연구", 대한조선학회 논문집, 47(5), pp.689~696 (2010), 대한조선학회
- Veer, V, "Added resistance of moonpools in calm water", The 27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE2008 - 57246 (2008)