플로터를 이용한 슬로싱 충격하중 저감효과가 선체운동에 미치는 영향
Effect on Vessel Motion Caused by Mitigation of Sloshing Impact Loads using Floaters
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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 liquidsloshing/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.
Abstract
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 liquidsloshing/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.
참고문헌 (17)
- Akyildiz, H., "Experimental Investigation of Pressure Distribution on a Rectangular Tank Due to the Liquid Sloshing", Ocean Engineering, 32, pp.1503~1516 (2005)
- Biswal, K.C., "Nonlinear Sloshing in Partially Liquid Filled Containers with Baffles", International Journal for Numerical Methods in Engineering, 68(3), pp.317~337 (2006)
- 최후인, "적재율이 슬로싱 충격압력에 미치는 영향에 관한 연구", 한국해양공학회지, 24(6), pp.30~33 (2010), 한국해양공학회
- Sloshing Analysis of Lng Membrane Tanks, "Det Norske Veritas (DNV)", ~, pp.Classification Notes No.30.9 (2006)
- Goudarzi , M.A., "Analytical and Experimental Evaluation on the Effectiveness of Upper Mounted Baffles with Respect to Commonly used Baffles", Ocean Engineering, 42, pp.205~217 (2012)
- 황성철, "사각 탱크 내 슬로싱 해석을 위한 입자법 시뮬레이션", 한국해양공학회지, 24(5), pp.31~38 (2010), 한국해양공학회
- Jung, J.H., "Effect of the Vertical Baffle Height on the Liquid Sloshing in a Three-dimensional Rectangular Tank", Ocean Engineering, 44, pp.79~89 (2012)
- Kishev, Z., "Numerical Simulation of Violent Sloshing by a CIP-Based Method", Journal of Marine Science and Technology, 11, pp.111~122 (2006)
- Kim, Y., "Model-scale Sloshing Tests for an Anti-sloshing Floating Blanket System", Proceedings of 2011 International Offshore and Polar Engineering Conference, pp.129~136 (2011)
- Kim, K.S., "Simulation of Sloshing Effect on Vessel Motions byUsing MPS (Moving Particle Simulation)", ComputerModeling Engineering Sciences, 79(3), pp.201~221 (2011)
- Koshizuka, S., "Moving-particle Semiimplicit Method for Fragmentation of Incompressible Fluid", Nuclear science and engineering, 123, pp.421~434 (1996)
- Lamb, H., "Hydrodynamics" (1932), Cambridge University Press
- Lee, B. H., "Moving Particle Simulation for Mitigation of Sloshing Impact Loads Using Surface Floaters", Computer Modeling Engineering Sciences, 75(2), pp.89~112 (2011)
- Lee, B. H., "Step-by-step Improvement of MPS Method in SimulatingViolent Free-surface Motions and Impact-loads", ComputerMethods in Applied Mechanics and Engineering, 200, pp.1113~1125 (2011)
- WAMIT Theory Manual: MIT Report 95-2, "Lee, C. H.", Dept. of Ocean engineering, Massachusetts Institute of Technology, ~ (1995)
- Lee, C. H., "The Computation of Second-order Wave Loads", Proceedings of 10th International Conference on OffshoreMechanics & Arctic Engng, pp.23~28 (1991)
- Liu, D., "Three-dimensional Liquid Sloshing in a Tank with Baffles", Ocean Engineering, 36(2), pp.202~212 (2009)