유한요소법을 이용한 수직 실린더에 작용하는 극한파랑력 해석

Abstract

Finite element method is applied to predict wave loads on a vertical cylinder under freak wave. As a mechanism for freak wave generation, a frequency-focused unidirectional wave is adopted in three-dimensional numerical wave tank. The mathematical formulation is made in the scope of potential theory with fully nonlinear free surface condition. As a numerical method, finite element method based on variational principle is adopted. Comparisons between numerical results and the experiment data are made.