수정된 밀도함수법을 이용한 반잠수식 해양구조물 주위의 자유수면 수치시뮬레이션

초록

During the design of offshore structures, the prediction of maximum crest height distorted by the column is important to determine the deck height of the structures. This paper addresses a method for the prediction of run-up around a semi-submersible offshore structure and pressure at two locations in regular waves using modified marker density(MMD) method. The MMD method is one of methods to define the free surface in Cartesian grid system. The numerical simulations are performed by specifying the velocities of being solved by Stokes 5th order wave theory at the inlet and applying damping zone near to the outlet. The simulations are performed for the waves of three periods which was conducted by Iwanowski et al.(2009). The numerical results are presented good agreement to the experimental data.