한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제26권4호
  • /
  • Pages.50-56
  • /
  • 2012
  • /
  • 1225-0767(pISSN)
  • /
  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
권호 표지
DOI QR코드

DOI QR Code

플로터를 이용한 슬로싱 충격하중 저감효과가 선체운동에 미치는 영향

Effect on Vessel Motion Caused by Mitigation of Sloshing Impact Loads using Floaters

  • Nam, Jung-Woo (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Kim, Kyung-Sung (Department of Civil Engineering, Texas A&M University) ;
  • Hwang, Sung-Chul (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Heo, Jae-Kyung (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Park, Jong-Chun (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Kim, Moo-Hyun (Department of Civil Engineering, Texas A&M University)
  • 투고 : 2012.06.13
  • 심사 : 2012.08.20
  • 발행 : 2012.09.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

When a liquid cargo tank is partially filled with fluid, internal impact loads can be occurred from the vessel's motions. In this study, liquid sloshing problems with a thin top layer of particles with a lighter density than water and the coupling effects of the liquid-sloshing/vessel-motion were investigated in order to reduce the sloshing-induced impact loads. The PNU-MPS (Pusan-National-University-modified Moving Particle Simulation) method for solving the liquid motion inside a tank and the CHARM3D BEM (Boundary Element Method) based time-domain ship motion analysis program for vessel-motion simulation were coupled. From the simulation results, we could see that the floaters seemed to be quite effective at reducing the sloshing impact loads in the case of tank-only sloshing problems, but not as much for the coupling problem with vessel motion.

키워드

참고문헌

  1. Akyildiz, H. and U¨nal, E. (2005). "Experimental Investigation of Pressure Distribution on a Rectangular Tank Due to the Liquid Sloshing", Ocean Engineering, Vol 32, No 11-12, pp 1503-1516. https://doi.org/10.1016/j.oceaneng.2004.11.006
  2. Biswal, K.C., Bhattacharyya, S.K. and Sinha, P.K. (2006). "Nonlinear Sloshing in Partially Liquid Filled Containers with Baffles", International Journal for Numerical Methods in Engineering, Vol 68, No 3, pp 317-337. https://doi.org/10.1002/nme.1709
  3. Choi, H.I., Kwon. S.H., Park, J,H. and Choi, Y.M. (2010). "A Study on the Effect Filling Ratio on Sloshing Impact Pressure", Journal of the Korean Society of Ocean Engineers, Vol 24, No 6, pp 30-33.
  4. Det Norske Veritas (DNV) (2006). "Sloshing Analysis of Lng Membrane Tanks", Classification Notes No.30.9
  5. Goudarzi , M.A. and Sabbagh-Yazdi, S.R. (2012). "Analytical and Experimental Evaluation on the Effectiveness of Upper Mounted Baffles with Respect to Commonly used Baffles", Ocean Engineering, Vol 42, pp 205-217. https://doi.org/10.1016/j.oceaneng.2011.12.005
  6. Hwang, S.C., Lee, B.-., Park, J.C. and Sung, H.G. (2010). "Par ticle-based Simulation for Sloshing in a Rectangular Tank", Korean Soc. Ocean Engrg., Vol 24, No 2, pp 20-27 (in Korean).
  7. Jung, J.H., Yoon, H.S., Lee, C.Y. and Shin, S.C. (2012). "Effect of the Vertical Baffle Height on the Liquid Sloshing in a Three-dimensional Rectangular Tank", Ocean Engineering, Vol 44, pp 79-89. https://doi.org/10.1016/j.oceaneng.2012.01.034
  8. Kishev, Z., Hu, C. and Kashiwagi, M. (2006). "Numerical Simulation of Violent Sloshing by a CIP-Based Method", Journal of Marine Science and Technology, Vol 11, pp 111-122. https://doi.org/10.1007/s00773-006-0216-7
  9. Kim, Y., Kim, S.Y., Kim, K.H., Chun, S.E., Suh, Y.S. Park, J.J., Hwang-Bo, S.M. and Lee, Y.J. (2011a). "Model-scale Sloshing Tests for an Anti-sloshing Floating Blanket System", Proceedings of 2011 International Offshore and Polar Engineering Conference, Maui, pp 129-136.
  10. Kim, K.S., Lee, B.H., Kim, M.H. and Park, J.C. (2011b). "Simulation of Sloshing Effect on Vessel Motions by Using MPS (Moving Particle Simulation)", Computer Modeling Engineering Sciences, Vol 79, No 3, pp 201-221.
  11. Koshizuka, S. and Oka, T. (1996). "Moving-particle Semiimplicit Method for Fragmentation of Incompressible Fluid", Nuclear science and engineering, Vol 123, pp 421-434.
  12. Lamb, H. (1932). "Hydrodynamics", Cambridge University Press.
  13. Lee, B.H., Park, J.C., Kim, M.H. and Hwang, S.C. (2011a). "Moving Particle Simulation for Mitigation of Sloshing Impact Loads Using Surface Floaters", Computer Modeling Engineering Sciences, Vol 75, No 2, pp 89-112.
  14. Lee, B.H., Park, J.C., Kim, M.H. and Hwang, S.C. (2011b). "Step-by-step Improvement of MPS Method in Simulating Violent Free-surface Motions and Impact-loads", Computer Methods in Applied Mechanics and Engineering, Vol 200, pp 1113-1125. https://doi.org/10.1016/j.cma.2010.12.001
  15. Lee, C.H. (1995). "WAMIT Theory Manual: MIT Report 95-2", Dept. of Ocean engineering, Massachusetts Institute of Technology, Cambridge, MA.
  16. Lee, C.H., Newman, J.N., Kim, M.H. and Yue, D.K.P. (1991). "The Computation of Second-order Wave Loads", Proceedings of 10th International Conference on Offshore Mechanics & Arctic Engng, pp 23-28.
  17. Liu, D. and Lin, P. (2009). "Three-dimensional Liquid Sloshing in a Tank with Baffles", Ocean Engineering Vol 36, No 2, pp 202-212. https://doi.org/10.1016/j.oceaneng.2008.10.004