DOI QR코드

DOI QR Code

Full Scale Frictional Resistance Reduction Effect of a Low Frictional Marine Anti-fouling Paint based on a Similarity Scaling Method

상사축척법에 기반한 저마찰 선박 방오도료의 실선 마찰저항 저감성능 추정

  • Yang, Jeong Woo (Basic Design Part, Design Team, Hanjin Heavy Industry and Construction Co. Inc.) ;
  • Park, Hyun (Global Core Research Center for Ships and Offshore Plants, Pusan National University) ;
  • Lee, Inwon (Department of Naval Architecture and Ocean Engineering, Pusan National University)
  • 양정우 (한진중공업 설계팀 기본설계파트) ;
  • 박현 (부산대학교 조선해양플랜트 글로벌핵심연구센터) ;
  • 이인원 (부산대학교 조선해양공학과)
  • Received : 2016.01.02
  • Accepted : 2016.02.02
  • Published : 2017.02.20

Abstract

In this study, a series of full-scale extrapolation procedures based on the Granville's similarity scaling method, which was employed by Schultz (2007), is modified and then applied to compare the resistance performance between two different anti-fouling coatings. As an analysis example, the low frictional AF coating based on a novel skin-friction reducing polymer named FDR-SPC (Frictional Drag Reduction Self-Polishing Copolymer), which had been invented by the present author, is employed. The low frictional coating, which gives 25.4% skin frictional reduction in lab test, is estimated to give 18.2% total resistance reduction for a 176k DWT bulk carrier.

Keywords

References

  1. An, N.H. CHun, H.H. & Lee, I., 2008. Experimental assessment of the drag reduction efficiency of the outer-layer vertical blades. Journal of the Society of Naval Architects of Korea, 45(5), pp.487-494. https://doi.org/10.3744/SNAK.2008.45.5.487
  2. Granville, P.S., 1987. Three indirect methods for the drag characterization of arbitrarily rough surfaces on flat plates. Journal of Ship Research, 31, pp.70-77.
  3. Jang, J. & Kim, H., 1999, On the reduction of a ship resistance by attaching an air cavity to its flat bottom. Journal of the Society of Naval Architects of Korea, 36(2), pp.1-8.
  4. Karlsson, R.I., 1978. The effect of irregular surface roughness on the frictional resistance of ships. Proceedings of International Symposium on Ship Viscous Resistance (Ed. L. Larsson), SSPA, Goteborg, Sweden, 31 August - 1 September 1978, pp.9:1-9:20.
  5. Kim, D. Chun, K,H. & Lee, Y.C., 2016. Ship operating efficiency improvement of 176k bulk carrier with ship's energy management solution, iSEMS. Proceedings of the Annual Autumn Conference of SNAK, Changwon, Republic of Korea, 3-4 November 2016, p.31.
  6. Kim, D.S. Kim, H.T. & Kim, W.J., 2003. Experimental study of friction drag reduction in turbulent flow with microbubble injection. Journal of the Society of Naval Architects of Korea, 40(3), pp.1-8. https://doi.org/10.3744/SNAK.2003.40.3.001
  7. Koo, B.G. Yoon, H.S. & Chun, H.H., 2004. Turbulent flow analysis and drag reduction by riblet surfaces. Journal of the Society of Naval Architects of Korea, 41(4), pp.59-67. https://doi.org/10.3744/SNAK.2004.41.4.059
  8. Lee, I. Park, H. & Chun, H.H., 2015. Drag reduction performance of FDR-SPC(Frictional Drag Reduction Self-Polishing Copolymer). 9th International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9), 5A-1, Melbourne, Australia, 30 June - 3 July 2015, paper# 5A-1.
  9. Schultz, M.P., 2004. Frictional resistance of antifouling coating systems. ASME Journal of Fluids Engineering, 126, pp.1039-1047. https://doi.org/10.1115/1.1845552
  10. Schultz, M.P., 2007. Effects of coating roughness and biofouling on ship resistance and powering. Biofouliung, 23(5), pp.331-341. https://doi.org/10.1080/08927010701461974
  11. Yang, J.W. Park, H. Chun, H.H. Ceccio, S.L. Perlin, M. & Lee, I., 2014. Development and performance at high Reynolds number of a skin-friction reducing marine paint using polymer additives. Ocean Engineering, 84, pp.183-193. https://doi.org/10.1016/j.oceaneng.2014.04.009
  12. Yoon, H.S. & Chun, H.H., 2005. Drag reduction in turbulent channel flow with periodically arrayed heating and cooling strips. Journal of the Society of Naval Architects of Korea, 42(6), pp.608-618. https://doi.org/10.3744/SNAK.2005.42.6.608