Skip to main content
SpringerLink
Log in

Experimental study on piston- and sloshing- mode moonpool resonances

  • Original article
  • Published:
Journal of Marine Science and Technology Aims and scope Submit manuscript

Abstract

An experimental study was performed on the piston- and sloshing-mode moonpool resonances of offshore structures. Two different geometries were considered to investigate the flow characteristics in a plain moonpool and a moonpool with a cofferdam. To examine the efficiency of a cofferdam for reducing the flow in a moonpool, three cofferdam geometries were tested. The plain moonpool presented violent flows as a result of the piston- and sloshing-mode resonances. However, the moonpool with the cofferdam introduced violent sloshing waves instead of the ascent and descent of the water column in the piston-mode moonpool resonance. Among three different cofferdam geometries, the model with a right triangle facing to the left on the top of the cofferdam was most effective in reducing the flow in the moonpool when compared with the other models.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
Fig. 18
Fig. 19
Fig. 20
Fig. 21
Fig. 22
Fig. 23
Fig. 24

Similar content being viewed by others

References

  1. Choi SY, Lee YG, Jung KY (2010) A fundamental study for internal flow in moonpool using marker-density method by two-dimensional numerical simulation. Spring Conference of the Society of Naval Architects of Korea, Jeju, Korea

  2. Choi SY, Lee YG, Jung KY (2011) Reduction of added resistance by internal flow control in the moonpool of a drillship. J Soc of Nav Archit Korea 48:544–551

    Article  Google Scholar 

  3. Hammargren E, Tőrnblom J (2012) Effect of the moonpool on the total resistance of a drillship. Chalmers University of Technology. MSc Thesis

  4. Fukuda K (1977) Behavior of water in vertical well with bottom opening of ship, and its effects ship-motion. J Soc of Nav Archit Korea 141:107–122

    Article  Google Scholar 

  5. Gaillarde G, Cotteleer A (2004) Water motion in moonpools empirical and theoretical approach. ATMA (Association Technique Maritime et Aeronautique), Paris

    Google Scholar 

  6. Han SY, Ha MK (2002) Ultra deepwater drillship. J Nav Archit Ocean Eng, 39(2)

  7. Maisondieu C and Ferrant P (2003) Evaluation of the 3D flow dynamics in a moonpool. In: Proceedings of the Thirteenth International Offshore and Polar Engineering Conference, Honolulu, Hawaii, USA, 25–30 May, 2003

  8. Molin B (2001) On the piston and sloshing modes in moonpools. J Fluid Mech 430:27–50

    Article  MathSciNet  MATH  Google Scholar 

  9. Park SJ (2009) Hydrodynamic characteristics of moonpool shapes. Pusan National University. MSc Thesis

  10. Veer, R. and Tholen, H. J. (2008) Added resistance of moonpools in calm water. Proceedings of the ASME 27th International Conference on Offshore Mechanics and Arctic Engineering, Estoril, Portugal, 15–20 June 2008

  11. Yang SH, Kwon SH (2013) Experimental study on moonpool resonance of offshore floating structure. J Nav Archit Ocean Eng 5:313–323

    Article  Google Scholar 

  12. Yang SH, Yang YJ, Lee SB, Do JT, Kwon SH (2013) Study on the moonpool resonance effect to the motion of a modern compact drillship. J Korea Soc Ocean Eng 27(3):53–60

    Google Scholar 

  13. Yeom DJ (2010) Dynamics of marine structures, 1st edn. Ulsan University, Ulsan

    Google Scholar 

  14. You KH, Jung SH, Das PK (2008) Improved construction method for modern drillships, Offshore Technology Conference, Houston, USA

Download references

Acknowledgments

This work was supported by a National Research Foundation of Korea (NRF) Grant funded by the Korea government (MSIP) through GCRC-SOP (No. 2011-0030013).

Author information

Authors and Affiliations

  1. Department of Naval Architecture and Ocean Engineering, Ulsan College, Ulsan, Korea

    Seung-Ho Yang

  2. Department of Naval Architecture and Ocean Engineering, Pusan National University, Busan, Korea

    Sang-Beom Lee, Jung-Ho Park, Seung-Yoon Han, Young-Myung Choi, Jitae Do & Sun-Hong Kwon

  3. École Centrale de Marseille and IRPHÉ, Marseille, France

    Bernard Molin

Authors
  1. Seung-Ho Yang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Sang-Beom Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Jung-Ho Park
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Seung-Yoon Han
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Young-Myung Choi
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Jitae Do
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. Sun-Hong Kwon
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. Bernard Molin
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Sun-Hong Kwon.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Yang, SH., Lee, SB., Park, JH. et al. Experimental study on piston- and sloshing- mode moonpool resonances. J Mar Sci Technol 21, 715–728 (2016). https://doi.org/10.1007/s00773-016-0386-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00773-016-0386-x

Keywords

Search

Navigation