Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Experimental Study on Variations in Behavior of Green Water and Flow Kinematics on Deck with Various Flare Angles

플레어 각도에 따른 청수현상의 발생과정 및 갑판 위 유동특성 변화에 대한 실험적 연구

  • Lee, Gang Nam (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Jung, Kwang Hyo (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Suh, Sung Bu (Department of Naval Architecture and Ocean Engineering, Dong-Eui University) ;
  • Kim, Mun Sung (Offshore Engineering Team, Samsung Heavy Industries, Co. Ltd)
  • 이강남 (부산대학교 조선해양공학과) ;
  • 정광효 (부산대학교 조선해양공학과) ;
  • 서성부 (동의대학교 조선해양공학과) ;
  • 김문성 (삼성중공업 해양엔지니어링팀)
  • Received : 2017.08.26
  • Accepted : 2018.04.12
  • Published : 2018.04.30
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Abstract

In this study, a series of experiments were performed to investigate the variations in the behavior of green water generation and the flow kinematics of bubbly flow on deck with various flare angles. The experiments were conducted in a 2-D wave flume using a simplified model of a BW Pioneer FPSO operating in the Gulf of Mexico, with a 100-year return period wave condition. The green water phenomena were captured with a high speed CCD camera. The variations in the behavior of the green water generation were investigated with various flare angles, and the horizontal mean velocity profiles of bubbly flow on deck obtained using bubble image velocimetry (BIV) were provided. The differences in flow kinematics of bubbly flow on deck were analyzed with various flare angles.

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References

  1. American Bureau of Shipping(ABS), 2015. Rules for Building and Classing, Mobile Offshore Drilling Units.
  2. API Bulletin 2INT-MET, 2007. Interim Guidance on Hurricane Conditions in the Gulf of Mexico.
  3. Buchner, B., Voogt, A., 2000. The Effect of Bow Flare Angle on FPSO Green Water Loading. OMAE 2000.
  4. Ersdal, G., Kvitrud, A., 2000. Green Water Incidents on Norwegian Production Ships. Proceedings of the Tenth International Conference on Offshore and Polar Engineering (ISOPE 2000), Seattle, USA, 1, 211-218.
  5. Faulkner, D.J., 2001. Survival Design of Cargo Hatch Structures. RINA Conference Design and Operation for Abnormal Conditions II, London United Kingdom.
  6. Faltisen, O.M., Greco, M., Landrini, M., 2002. Green Water Loading on a FPSO. OMAE 2002.
  7. Greco, M., 2001. A Two-dimensional Study of Green-water Loading. Ph. D. Thesis, University of Trondheim.
  8. Hamoudi, B., Varyani, K., 1998. Significant Load and Green Water on Deck of Offshore Units/Vessels. Ocean Engineering, 25(8), 715-731. https://doi.org/10.1016/S0029-8018(97)10005-1
  9. Hughes, S.A., 1993. Physical Models and Laboratory Techniques in Coastal Engineering. Advanced Series in Ocean Engineering, 7, World Scientific, Singapore.
  10. Hysing, S., Turek, S., Kuzmin, D., Parolini, N., Burman, E., Ganesan, S., Tobiska, L., 2009. Quantitative Benchmark Computations of Two-dimensional Bubble Dynamics. International Journal for Numerical Methods in Fluids, 60(11), 1259-1288. https://doi.org/10.1002/fld.1934
  11. Lee, G.N., Jung, K.H., Chae, Y.J., Park, I.R., Malenica, S., Chung, Y.S., 2016. Experimental and Numerical Study of the Behaviour and Flow Kinematics of the Formation of Green Water on a Rectangular Structure. Brodogradnja / Shipbuilding, 67(3), 133-145.
  12. Leonhardsen, R., Ersdal, G., Kvitrud, A., 2001. Experience and Risk Assessment of FPSOs in Use on the Norwegian Continental Shelf: Descriptions of Events. Proceedings of the Eleventh International Conference on Offshore and Polar Engineering (ISOPE 2001), Stavanger Norway.
  13. Lim, H.J., Park, S.H., Rhee, S.H., 2012. Experiments and Numerical Validation for FPSO Bow Water Shipping. Journal of the society of Naval Architects of Korea, 49(1), 6-13. https://doi.org/10.3744/SNAK.2012.49.1.6
  14. Lloyd's Register(LR), 2014. Rules and Regulations for the Classification of Offshore Units.
  15. Mori, N., Chang, K.A., 2003. Introduction to MPIV, User Reference Manual 14. [Online] Available at : [Accessed August 2018]
  16. Nielsen, K.B., Mayer, S., 2004. Numerical Prediction of Green Water Incidents. Ocean Engineering 31(3-4), 363-399. https://doi.org/10.1016/j.oceaneng.2003.06.001
  17. Ryu, Y., Chang, K.A., 2005. Breaking Wave Impinging and Green Water on a Two-dimensional Offshore Structure. Proceedings of the The 15th International Offshore and Polar Engineering Conference, International Society of Offshore and Polar Engineers.
  18. Ryu, Y., Jung, K., 2012. Multi-phase Flow Velocity Measurement Technique using Shadow Graphic Images. Journal of Ocean Engineering and Technology, 26(3), 61-65. https://doi.org/10.5574/KSOE.2012.26.3.061
  19. Shibata, K., Koshizuka, S., 2007. Numerical Analysis of Shipping Water Impact on a Deck Using a Particle Method. Ocean Engineering, 34, 585-593. https://doi.org/10.1016/j.oceaneng.2005.12.012
  20. Sgouros, G., Pritchett, W., Schafer, D., Jones, D., 2005. Shell's Experience with Hurricane Ivan. Proceedings of API-2005 Hurricane Readiness and Recovery Conference, Houston USA.
  21. Soares, C.G., Pascoal, R., 2005. Experimental Study of the Probability Distributions of Green Water on the Bow of Floating Production Platforms. Journal of Offshore Mechanics and Arctic Engineering, 127(3), 234-242. https://doi.org/10.1115/1.1951773
  22. Yamasaki, J., Miyata, H., Kanai, A., 2005. Finite-Difference Simulation of Green Water Impact on Fixed and Moving Bodies. Journal of Marine Science and Technology, 10(1), 1-10. https://doi.org/10.1007/s00773-005-0194-1