Rapid Simulation of Freak Wave Generation based on a Nonlinear Model

摘要：

A simple and rapid simulation of freak wave generation is attempted. This scheme is based on sideband instability in the evolution of wave trains. The modified four-order nonlinear Schr¨odinger equation is employed as a mathematical model. And the superimposed wave trains by carrier wave and sideband disturbances are applied to this equation as initial conditions. In the simulation, variations of wave steepness, scale factor and sideband disturbance parameter are respectively considered to explore the generation of freak waves. Results show that some values of parameters are very helpful to form freak waves. And according to this, the rapid numerical experiment is performed, and an example of freak wave generation are provided.

关键词： freak wave sideband instability nonlinear model rapid simulation

作者: Y. Q. Zhang J. P. Hu S. W. Sheng Y. Ye Y. G. You B. J. Wu

作者单位: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences; Key Laboratory of Renewable E School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 5106

会议类型: 国际会议

会议名称: 第六届流体力学国际会议

会议地点: 广州

会议语种:英文

页码: 279-283

在线出版日期: 2011-06-30（万方平台首次上网日期，不代表论文的发表时间）