Recess type moonpools are vertical wells with step frequently found in Samsung drillship. The recess moonpool was originally invented in order to move the drilling equipments without hull interferences. It was also verified that the recess type moonpool had good performance on reduction of relative motion inside the moonpool during zero speed operation. However, once the ship is under forward speed, the moonpool brings a large drag due to the oscillation of water inside the structure. In this research, a drag reduction method of the moonpool was investigated through analyzing the flow behavior inside the moonpool at the Samsung Ship Model Basin. As a result, the moonpool was modified through numerical and experimental study, which was obtained more than ten percents of drag reduction compared to normal rectangular moonpools.
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ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
June 15–20, 2008
Estoril, Portugal
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4818-0
PROCEEDINGS PAPER
Drag Reduction of Recess Type Moonpool Under Vessel’s Forward Speed
Hye-Jong Son,
Hye-Jong Son
Samsung Heavy Industries Co., Ltd., Daejeon, South Korea
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Soon-Ho Choi,
Soon-Ho Choi
Samsung Heavy Industries Co., Ltd., Daejeon, South Korea
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Man-Hwan Kim,
Man-Hwan Kim
Samsung Heavy Industries Co., Ltd., Daejeon, South Korea
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Seung-Myun Hwangbo
Seung-Myun Hwangbo
Samsung Heavy Industries Co., Ltd., Daejeon, South Korea
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Hye-Jong Son
Samsung Heavy Industries Co., Ltd., Daejeon, South Korea
Soon-Ho Choi
Samsung Heavy Industries Co., Ltd., Daejeon, South Korea
Man-Hwan Kim
Samsung Heavy Industries Co., Ltd., Daejeon, South Korea
Seung-Myun Hwangbo
Samsung Heavy Industries Co., Ltd., Daejeon, South Korea
Paper No:
OMAE2008-57118, pp. 143-148; 6 pages
Published Online:
July 27, 2009
Citation
Son, H, Choi, S, Kim, M, & Hwangbo, S. "Drag Reduction of Recess Type Moonpool Under Vessel’s Forward Speed." Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. Volume 1: Offshore Technology. Estoril, Portugal. June 15–20, 2008. pp. 143-148. ASME. https://doi.org/10.1115/OMAE2008-57118
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