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    An Improved Technique to Generate RogueWaves in Random Sea

    Jinghua Wang1, S Yan1, Q.W. Ma1,2

    CMES-Computer Modeling in Engineering & Sciences, Vol.106, No.4, pp. 263-289, 2015, DOI:10.3970/cmes.2015.106.263

    Abstract This paper presents an improved technique to generate rogue (freak) waves embedded in random sea based on the approach proposed by Kribel and Alsina (2000). In this method, a part of the wave energy is focused using the temporal-spatial focusing approach to generate an extreme transient wave and the rest behaves randomly. By introducing a correction term, the improved technique removes the numerical.ly spurious fluctuations of the spectra in the existing approach. Various effects of the correction are investigated numerically by using the second-order wave theory and two existing numerical. methods based on the fully nonlinear potential theory (FNPT), including… More >

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