Numerical Investigations on Responses of Two Moored 3D Floating Structures to Steep Waves

摘要

This paper presents some results about the responses of two moored 3D floating structures to steep waves obtained by using the QALE-FEM (quasi arbitrary Lagrangian-Eulerian finite element) method based on FNPT (fully nonlinear potential theory) models. In this method, the computational mesh is efficiently moved at every time step to conform to the variation of the fluid domain, eliminating the necessity of very costly procedure of regenerating mesh which is required by the conventional FEM method. By using this method, various cases with two moored 3D floating structures in steep waves are numerically simulated and the nonlinearity involved is investigated.