Numerical Simulation of Freak Wave Generation in Irregular Wave Train - Journal of Applied Mathematics and Physics

JAMP > Vol.3 No.8, August 2015

Numerical Simulation of Freak Wave Generation in Irregular Wave Train ()

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Download as PDF (Size: 1755KB) PP. 1044-1050

DOI: 10.4236/jamp.2015.38129 3,336 Downloads 4,246 Views Citations

Author(s)

Lei Wang, Jinxuan Li^*, Shuxue Li

Affiliation(s)

State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, China.

ABSTRACT

In this paper, a numerical wave tank is developed based on High Order Spectral (HOS) method considering the wave-maker boundary. The 2D irregular wave trains are simulated for a long time by using this model. The freak wave is observed in the wave train, and its generation process is analyzed via wavelet analysis. The results show that the numerical tank can accurately simulate the wave generation and propagation, even for the freak wave. From the analysis of freak wave generation, it can be found that, two wave groups with different frequency components superpose together to form a large wave group. The large wave group modulation generates the freak wave.

KEYWORDS

Freak Wave, High Order Spectral Method, Numerical Wave Tank

Share and Cite:

Wang, L. , Li, J. and Li, S. (2015) Numerical Simulation of Freak Wave Generation in Irregular Wave Train. Journal of Applied Mathematics and Physics, 3, 1044-1050. doi: 10.4236/jamp.2015.38129.

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