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

doi:2012.26.4.50

J. Ocean Eng. Technol. > Volume 26(4); 2012 > Article

J. Ocean Eng. Technol. 2012;26(4):50-56.
DOI: https://doi.org/10.5574/KSOE.2012.26.4.050

Nam Jung-Woo,Kim Kyung-Sung,Hwang Sung-Chul,Heo Jae-Kyung,Park Jong-Chun,Kim Moo-Hyun

Department of Naval Architecture and Ocean Engineering Pusan National University,Department of Civil Engineering Texas A&M University,Department of Naval Architecture and Ocean Engineering Pusan National University,Department of Naval Architecture and

플로터를 이용한 슬로싱 충격하중 저감효과가 선체운동에 미치는 영향

남정우,김경성,황성철,허재경,박종천

부산대학교 조선해양공학과,부산대학교 조선해양공학과,부산대학교 조선해양공학과,부산대학교 조선해양공학과

Keywords: Moving particle simulation (MPS) method, Sloshing, Floater, Long-time simulation Coupling of liquid-sloshing/vessel-motion

핵심용어: MPS법, 슬로싱, 부유구, 장시간 시뮬레이션, 슬로싱-선체운동 연성

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 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.