Extreme waves in random crossing seas: Laboratory experiments and numerical simulations
Extreme waves in random crossing seas: Laboratory experiments and numerical simulations
复制标题
DOI：
10.1029/2011gl046827
复制
发表时间：
2011-03
影响因子：
5.2
通讯作者：
A. Toffoli;E. Bitner-Gregersen;A. Osborne;M. Serio;J. Monbaliu;M. Onorato
中科院分区：
文献类型：
--
作者：
A. Toffoli;E. Bitner-Gregersen;A. Osborne;M. Serio;J. Monbaliu;M. Onorato
本文对跨海条件下海面高程的统计特性进行了实验和数值研究。在一个非常大的波池(70m×50m×3m)中进行了实验，并用求解欧拉方程的高阶方法得到了数值结果。实验和数值结果都表明，极端事件的数量取决于两个相互作用系统之间的夹角。这一结果得到了最近的理论研究的支持，这些研究强调了波包的不稳定性可能是由共存的非共线波系之间的非线性相互作用所触发的。
We present an experimental and numerical investigation on the statistical properties of the surface elevation in crossing sea conditions. Experiments are performed in a very large wave basin (70 m × 50 m × 3 m) and numerical results are obtained using a higher order method for solving the Euler equations. Both experimental and numerical results indicate that the number of extreme events depends on the angle between the two interacting systems. This outcome is supported by recent theoretical investigations which have highlighted that the instability of wave packets may be triggered by the nonlinear interactions between coexisting, non‐collinear wave systems.