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首页> 外文期刊>Journal of Physical Oceanography >On Kurtosis and Occurrence Probability of Freak Waves
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On Kurtosis and Occurrence Probability of Freak Waves

机译:关于畸形波的峰度和出现概率

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摘要

Based on a weakly non-Gaussian theory, the occurrence probability of freak waves is formulated in terms of the number of waves in a time series and the surface elevation kurtosis. Finite kurtosis gives rise to a significant enhancement of freak wave generation in comparison with the linear narrowbanded wave theory. For a fixed number of waves, the estimated amplification ratio of freak wave occurrence due to the deviation from the Gaussian theory is 50%-300%. The results of the theory are compared with laboratory and field data.
机译:基于弱非高斯理论,根据时间序列中的波数和表面高程峰度来表示怪胎波的发生概率。与线性窄带波理论相比,有限峰度极大地增强了畸形波的产生。对于固定数量的波,由于偏离高斯理论而导致的畸形波的估计放大率为50%-300%。该理论的结果与实验室和现场数据进行了比较。

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