| Generation and Properties of Freak Waves in A Numerical Wave Tank |
| |
| 作者姓名： | 韩涛 张庆河 庞红犁 秦崇仁 |
| |
| 作者单位： | SchoolofCivilEngineering,TianjinUniversity,Tianjin300072,China |
| |
| 基金项目： | TheprojectwassupportedbytheNationalNaturalScienceFoundationofChina (grantNo .5 0 0 790 15 ) |
| |
| 摘 要： | Freak waves are generated based on the mechanism of wave focusing in a 2D numerical wave tank. To set up the nonlinear numerical wave tank, the Boundary Element Method is used to solve potential flow equations incorporated with fully nonlinear free surface boundary conditions. The nonlinear properties of freak waves, such as high frequency components and wave profile asymmetry, are discussed. The kinematic data, which can be useful for the evaluation of the wave forces exerted on structures to avoid underestimation of linear predictions, are obtained, and discussed, from the simulated results of freak waves.
|
| 关 键 词： | 反常波 造波水池 调焦 边界元法 流体力学 拉普拉斯方程 |
Generation and Properties of Freak Waves in A Numerical Wave Tank |
| |
| HAN Tao,ZHANG Qing-he PANG Hong-li and QIN Chong-ren School of Civil Engineering,Tianjin University,Tianjin ,China.Generation and Properties of Freak Waves in A Numerical Wave Tank[J].China Ocean Engineering,2004,18(2):281-290. |
| |
| Authors: | HAN Tao ZHANG Qing-he PANG Hong-li and QIN Chong-ren School of Civil Engineering Tianjin University Tianjin China |
| |
| Institution: | HAN Tao,ZHANG Qing-he 1PANG Hong-li and QIN Chong-ren School of Civil Engineering,Tianjin University,Tianjin 300072,China |
| |
| Abstract: | Freak waves are generated based on the mechanism of wave focusing in a 2D numerical wave tank. To set up the nonlinear numerical wave tank, the Boundary Element Method is used to solve potential flow equations incorporated with fully nonlinear free surface boundary conditions. The nonlinear properties of freak waves, such as high frequency components and wave profile asymmetry, are discussed. The kinematic data, which can be useful for the evaluation of the wave forces exerted on structures to avoid underestimation of linear predictions, are obtained, and discussed, from the simulated results of freak waves. |
| |
| Keywords: | freak wave numerical wave tank wave focusing boundary element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国海洋工程》浏览原始摘要信息 |
| 点击此处可从《中国海洋工程》下载免费的PDF全文 |
