论文标题
复合海滩上的极端淹没统计
Extreme Inundation Statistics on a Composite Beach
论文作者
论文摘要
基于非线性浅水方程，使用直接数值模拟研究了初始高斯窄带和宽带波场及其统计特征的曲目。测深到由恒定深度的部分组成，该部分与恒定坡度的海滩相匹配。为了解决不同水平的非线性，考虑了具有五个不同重要波高度的时间序列。选定的波参数也允许看到波破裂对波统计的影响。每个模拟时间序列的总物理时间为1000小时（〜360000波周期）。就波浪非线性，波浪破裂和传入波场的带宽讨论了计算出的波长高度的统计数据。建议有条件的威布尔分布作为描述极端高度高度的模型和对极端淹没的评估。
The runup of initial Gaussian narrow-banded and wide-banded wave fields and its statistical characteristics are investigated using direct numerical simulations, based on the nonlinear shallow water equations. The bathymetry consists of the section of a constant depth, which is matched with the beach of constant slope. To address different levels of nonlinearity, the time series with five different significant wave heights are considered. The selected wave parameters allow also seeing the effects of wave breaking on wave statistics. The total physical time of each simulated time-series is 1000 hours (~360000 wave periods). The statistics of calculated wave runup heights are discussed with respect to the wave nonlinearity, wave breaking and the bandwidth of the incoming wave field. The conditional Weibull distribution is suggested as a model for the description of extreme runup heights and assessment of extreme inundations.
