In this study, a theoretical freak wave sequence is numerically simulated and compared with the theoretical results. To accomplish this objective, velocity inlet method is applied. At the wave-maker boundary, linear velocity components are input, which takes no consideration of higher-order wave components. Numerical simulation in three different grid models is conducted to determinate which model is efficient as well as being capable to track the free surface. As Fast Fourier Transformation (FFT) can not reflect the temporal-frequency of the freak wave, thus wavelet analysis is introduced to investigate the energy of the wave package during the wave propagation. Comparison of wavelet transform of the freak wave recorded in North Sea and present freak wave is made.
|Number of pages||11|
|Journal||Chuan Bo Li Xue/Journal of Ship Mechanics|
|Publication status||Published - 1 Dec 2017|