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      U-튜브형 횡동요 감쇄 탱크의 자유수면 해석기법 개발에 관한 연구 = Development of Numerical Computation Techniques for the Free-Surface of U-Tube Type Anti-roll Tank

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      https://www.riss.kr/link?id=A108417631

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      다국어 초록 (Multilingual Abstract)

      Marine accidents due to a loss of stability, have been gradually increasing over the last decade. Measures must be taken on the roll reduction of a ship. Amongst the measures, building an anti-roll tank in a ship is recognized as the most simple and effective way to reduce the roll motion. Therefore, this study aims to develop a computational model for a U-tube type anti-roll tank and to validate it by experiment. In particular, to validate the developed computational model, the height of the free surface in the tank was measured in the experiment. To develop a computational model, the mesh dependency test was carried out. Further, the effects of a turbulence model, time step size, and the number of iterations on the numerical solution were analyzed. In summary, a U-tube type anti-roll tank simulation had to be performed accurately with conditions of a realizable - turbulence model, 10-2s time step size, and 15 iterations. In validation, the two cases of measured data from the experiment were compared with the numerical results. In the present study, STAR-CCM+ (ver. 17.02), a RANS-based commercial solver was used.
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      Marine accidents due to a loss of stability, have been gradually increasing over the last decade. Measures must be taken on the roll reduction of a ship. Amongst the measures, building an anti-roll tank in a ship is recognized as the most simple and e...

      Marine accidents due to a loss of stability, have been gradually increasing over the last decade. Measures must be taken on the roll reduction of a ship. Amongst the measures, building an anti-roll tank in a ship is recognized as the most simple and effective way to reduce the roll motion. Therefore, this study aims to develop a computational model for a U-tube type anti-roll tank and to validate it by experiment. In particular, to validate the developed computational model, the height of the free surface in the tank was measured in the experiment. To develop a computational model, the mesh dependency test was carried out. Further, the effects of a turbulence model, time step size, and the number of iterations on the numerical solution were analyzed. In summary, a U-tube type anti-roll tank simulation had to be performed accurately with conditions of a realizable - turbulence model, 10-2s time step size, and 15 iterations. In validation, the two cases of measured data from the experiment were compared with the numerical results. In the present study, STAR-CCM+ (ver. 17.02), a RANS-based commercial solver was used.

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      참고문헌 (Reference)

      1 김경성 ; 이병혁, "능동형 횡동요 저감 장치를 이용한 선박운동제어 시뮬레이션" 한국해양공학회 32 (32): 440-446, 2018

      2 Hirt, C. W, "Volume of Fluid Method for the Dynamics of Free Boundaries" 39 : 201-225, 1981

      3 STAR-CCM+, "User’s Guide (Ver. 17.02)" SIEMENS 2022

      4 Stigter, C, "The Performance of U-tanks as a Passive Anti-rolling Device" 1966

      5 de Moura, C. A, "The Courant-Friedrichs-Lewy Condition" Birkhauser 2013

      6 Souto-Iglesias, A, "Simulation of Anti-roll Tanks and Sloshing Type Problems with Smoothed Particle Hydrodynamics" 31 (31): 1169-1192, 2004

      7 Bass, D. W, "Roll Stabilization for Small Fishing Vessels using Paravanes and Anti-roll tanks" 35 (35): 74-84, 1998

      8 Vasta, J, "Roll Stabilization by means of Passive Tanks" 69 : 411-460, 1961

      9 Frahm, H, "Results of Trials of the Anti-rolling Tanks at Aea" 53 : 183-201, 1911

      10 Webster, W. C, "Prediction and Measurement of the Performance of Free-flooding Ship Anti-rolling Tanks" 96 : 1988

      1 김경성 ; 이병혁, "능동형 횡동요 저감 장치를 이용한 선박운동제어 시뮬레이션" 한국해양공학회 32 (32): 440-446, 2018

      2 Hirt, C. W, "Volume of Fluid Method for the Dynamics of Free Boundaries" 39 : 201-225, 1981

      3 STAR-CCM+, "User’s Guide (Ver. 17.02)" SIEMENS 2022

      4 Stigter, C, "The Performance of U-tanks as a Passive Anti-rolling Device" 1966

      5 de Moura, C. A, "The Courant-Friedrichs-Lewy Condition" Birkhauser 2013

      6 Souto-Iglesias, A, "Simulation of Anti-roll Tanks and Sloshing Type Problems with Smoothed Particle Hydrodynamics" 31 (31): 1169-1192, 2004

      7 Bass, D. W, "Roll Stabilization for Small Fishing Vessels using Paravanes and Anti-roll tanks" 35 (35): 74-84, 1998

      8 Vasta, J, "Roll Stabilization by means of Passive Tanks" 69 : 411-460, 1961

      9 Frahm, H, "Results of Trials of the Anti-rolling Tanks at Aea" 53 : 183-201, 1911

      10 Webster, W. C, "Prediction and Measurement of the Performance of Free-flooding Ship Anti-rolling Tanks" 96 : 1988

      11 Lew, J. M, "On the Passive Type Anti-rolling Tank and its Activations by Air Blower" 7 (7): 19-23, 2003

      12 Bosch, J. J. V. D, "On Roll Damping by Free Surface Tanks" 108 : 345-, 1966

      13 Kleefsman, K. M. T, "Numerical Simulation of Ship Motion Stabilization by an Activated U-tube Anti-roll Tank" University of Groningen 2000

      14 Hashimoto, H, "Numerical Simulation Method for a Coupling Motion of Ship and Tank Fluid" 2010

      15 KMST, "Korean Maritime Safety Tribunal, Statistics:Marine Accidents according to Vessel Type" 2019

      16 van Daalen, E. F. G, "Free Surface Anti-roll Tank Simulations with a Volume Of Fluid based Navier-Stokes Solver" 2000

      17 Bhattacharyya, R, "Dynamics of Marine Vehicles" John Wiley & Sons, Inc 1978

      18 Field, S. B, "Comparative Effects of Utube and Free Surface Type Passive Roll Stabilization Systems" 118 : 73-92, 1976

      19 Bernal-Colio, V. R, "CFD Computation of the Hydrodynamic Torque due to Free-surface Antiroll Tanks with 3D Dynamics" 16 (16): 2021

      20 Kerkvliet, M, "Analysis of U-type Anti-roll Tank using URANs. Sensitivity and Validation" 2014

      21 Yamaguchi, S, "An Advanced Adaptive Control System for Activated Anti-roll Tank" 5 (5): 17-22, 1995

      22 Ikeda, Y, "A Study on Flume-type Anti-rolling Tank" 216 : 111-, 1991

      23 Zhong, Z, "A Numerical Study of U-tube Passive Anti-roll Tanks" 3 : 504-512, 1998

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