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论文类型：期刊论文

发表时间：2009-09-01

发表刊物：CHINA OCEAN ENGINEERING

收录刊物：SCIE、EI、ISTIC、Scopus

卷号：23

期号：3

页面范围：429-440

ISSN号：0890-5487

关键字：High-Order-Spectral (HOS); freak wave; wave focusing; Longuet-Higgins model; phase modulation

摘要：Four focusing models for generation of freak waves are presented. An extreme wave focusing model is presented on the basis of the enhanced High-Order Spectral (HOS) method and the importance of the nonlinear wave-wave interaction is evaluated by comparison of the calculated results with experimental and theoretical data. Based on the modification of the Longuet-Higgins model, four wave models for generation of freak waves (a. extreme wave model + random wave model; b. extreme wave model + regular wave model; C. phase interval modulation wave focusing model; d. number modulation wave focusing model with the same phase) are proposed. By use of different energy distribution techniques in he four models, freak wave events am obtained with different H(max)/H(s) in finite space and time