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입자법을 이용한 비선형식 자유표면 유동의 수치 시뮬레이션
이병혁(BYUNG-HYUK LEE),박종천(JONG-CHUN PARK),정성준(사회자),류민철(MIN-CHEOL RYU),김용수(YONG-SOO KIM),김영훈(YOUNG-HUN KIM) 한국해양공학회 2007 韓國海洋工學會誌 Vol.21 No.6
A particle method, recognized as one of gridless methods, has been developed to investigate non-linear free-surface motions interacting with structures. This method is more feasible and effective than conventional grid methods for solving flow fieldswith complicated boundary shapes. The method consists of particle interaction models representing pressure gradient, diffusion, incompressibility, and the free-surface boundary conditions without grids. In the present study, broken dam problems with various viscosity values are simulated to validate the developed method.
정성준(SUNG-JUN JUNG),박종천(JONG-CHUN PARK),이병혁(BYUNG-HYUK LEE),류민철(MIN-CHEOL RYU),김용수(YONG-SOO KIM) 한국해양공학회 2008 韓國海洋工學會誌 Vol.22 No.2
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 flow 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 flow field with complicated boundary shapes.