3-D simulations of freak waves based on high-order spectral method
ZHAO Xi-zeng1,2, SUN Zhao-chen1, LIANG Shu-xiu1
1.State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China;2.RIAM,Kyushu University,Japan
Abstract:
Three-dimensional (3-D) directional wave focusing is one of the mechanisms that contribute to the generation of freak waves. To simulate and analyze this phenomenon,a 3-D wave focusing model is proposed based on the enhanced high-order spectral method,which solves the fully nonlinear potential flow equations with a free surface within periodic unbounded 3-D domains. The numerical model is validated against a fifth-order Stokes solution for regular waves. Laboratory-scale freak waves are observed with wave components having equal amplitudes. Investigations of the appearance and propagation of freak-wave events in a 3-D open wavefield defined by a directional wave spectrum are then realized.
Key words: freak wave high order spectral method directional spectrum wave focusing wave model
DOI：10.11916/j.issn.1005-9113.2010.02.026
Clc Number:O353.2
Fund:
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3-D simulations of freak waves based on high-order spectral method
本站小编 哈尔滨工业大学/2019-10-23
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