THE OCCURRENCE PROBABILITIES OF ROGUE WAVES IN DIFFERENT NONLINEAR STAGES

Proceedings of the International Conference on Coastal Engineering

Keren Qi¹  Jinhai Zheng¹  Aifeng Tao¹  Ji Peng¹  Yuqing Wu¹ 

[1] Hohai University

关键词: Rouge Waves;    HOS;    Nonlinear mechanism;    probability;    Kurtosis;    Entropy;   

DOI  :  10.9753/icce.v34.waves.35

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

The occurrence probabilities of Rogue Waves in different nonlinear states are investigated based on high-order spectral method (HOSM), which is a direct phase-resolved numerical method. The focus is given to the occurrence probability of Rogue Waves in the nonlinear evolution stage where the Benjamin-Feir Instability is not the dominate mechanism due to the quartet resonance interactions for wave fields with a broad range in frequencies. The initial wave trains are generated from Stokes waves and two sidebands. Based on the simulation, we find that the Kurtosis evolves distinctly at three nonlinear stages and shows a weak relation to the probabilities of the Rouge Waves. We also introduce a simple Entropy formula, turning out to close a stable value.

【 授权许可】

Unknown