Nonlinear Simulation of 3-D Freak Waves Using a Fast Numerical Method
2008; International Society of Offshore and Polar Engineers; Volume: 19; Issue: 03 Linguagem: Inglês
ISSN
1053-5381
Autores Tópico(s)Coastal and Marine Dynamics
ResumoThis paper uses the QALE-FEM (Quasi arbitrary Lagrangian-Eulerian finite element) method based on the FNPT (Fully nonlinear potential theory) model to simulate 3D freak waves. The efficiency investigation indicates that this method is much faster than other numerical methods in terms of the same accuracy requirement. A snake wavemaker is adopted to generate 3D freak waves by directional energy focusing. The nonlinearity of the freak waves and the seabed effect on the freak waves are investigated. Both overturning and non-overturning freak waves are considered. Some results are compared with those in public domain, good agreements will be shown. .
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