Numerical Simulation of Two-dimensional Floating Body Motion in Waves Using Particle Method

J. Ocean Eng. Technol. 2008;22(2):20-27.

Jung Sung-Jun,Park Jong-Chun,Lee Byung-Hyuk,Ryu Min-Cheol,Kim Yong-Soo

Ship and Ocean R&D Institute Daewoo Shipbuilding and Marine Engineering Co Ltd.,Dept. of Naval Architecture and Ocean Engineering Pusan National University,Dept. of Naval Architecture and Ocean Engineering Pusan National University,Ship and Ocean R&D

입자법에 의한 파랑중 2차원 부유체 운동 시뮬레이션

정성준,박종천,이병혁,류민철,김용수

대우조선해양㈜ 선박해양 기술연구소,부산대학교 조선해양공학과,부산대학교 조선해양공학과,대우조선해양㈜ 선박해양기술연구소,대우조선해양㈜ 선박해양기술연구소

Keywords: Particle method, Moving particle semi-implicit(MPS), Computational fluid dynamics, Non-linear free surface, Moon-pool, Two-dimensional floating body motion

핵심용어: 입자법, 입자간 상호작용 모델, 전산유체역학, 비선형 자유표면, 문풀, 2차원 부유체 운동

Abstract

A moon-pool is a vertical well in a floating barge, drilling ship, or offshore support vessel. In this study, numerical simulation of two-dimensional moon-pool flaw coupled with a ship's motion in waves is carried out using a particle method, the so-called MPS method. The particle method, which is recognized as one of the gridless methods, was developed to investigate nonlinear free-surface motions interacting with structures. The method is more feasible and effective than convectional grid methods in order to solve a flaw field with complicated boundary shapes.