두 선박의 상호작용문제에 관한 포텐셜 유동기반 시간영역 수치해석

Abstract

In this study, a new time-domain analysis method has been developed to investigate a ship-to-ship interaction problem. The boundary value problem is formulated with respect to an earth-fixed coordinate system. The classical finite element method is used to solve the Laplace equation in the fluid domain with moving boundary. A simple re-mesh algorithm with local and global mesh is introduced to update mesh. The developed numerical method is validated by applying conventional ship motion problem with constant forward speed. Then, we solved passing ship problem with two Series60 models. The focus is on the ship wave and wave forces. The comparison shows good agreement between present numerical method and experimental results.ethod is used to solve the Laplace equation in the fluid domain with moving boundary. A simple re-mesh algorithm with local and global mesh is introduced to update mesh. The developed numerical method is validated by applying conventional ship motion problem with constant forward speed. Then, we solved passing ship problem with two Series60 models. The focus is on the ship wave and wave forces. The comparison shows good agreement between present numerical method and experimental results.