플로터를 이용한 슬로싱 충격하중 저감효과가 선체운동에 미치는 영향

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 26; no. 4; pp. 50 - 56
• Main Authors: 남정우(Jung-Woo Nam), 김경성(Kyung-Sung Kim), 황성철(Sung-Chul Hwan), 허재경(Jae-Kyung Heo), 박종천(Jong-Chun Park), Moo-Hyun Kim
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2012
• Subjects: 해양공학; 슬로싱; Floater; 슬로싱-선체운동 연성; method MPS법; Coupling of liquid-sloshing/vessel-motion; Sloshing; Moving particle simulation(MPS); 장시간 시뮬레이션; Long-time simulation; 부유구; MPS; -
• ISSN: 1225-0767; 2287-6715

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.