Numerical Simulation of Deterministic Freak Wave Based on Energy Distribution

Ning Bo Gao, Jian Min Yang, Wen Hua Zhao, Xin Li

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)1449-1459
Number of pages11
JournalChuan Bo Li Xue/Journal of Ship Mechanics
Volume21
Issue number12
DOIs
Publication statusPublished - 1 Dec 2017

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Computer simulation
Wavelet analysis
Wavelet transforms
Wave propagation

Cite this

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abstract = "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.",
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Numerical Simulation of Deterministic Freak Wave Based on Energy Distribution. / Gao, Ning Bo; Yang, Jian Min; Zhao, Wen Hua; Li, Xin.

In: Chuan Bo Li Xue/Journal of Ship Mechanics, Vol. 21, No. 12, 01.12.2017, p. 1449-1459.

Research output: Contribution to journalArticle

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AU - Li, Xin

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