风暴潮期间水位变化条件下的海堤越浪量研究-海洋预报

风暴潮期间水位变化条件下的海堤越浪量研究

单位：黄河水利职业技术学院, 河南开封 475000

分类号：P731.22

出版年·卷·期（页码）：2025·42·第一期（64-70）

摘要：

风暴潮期间的水位变化会引起海堤结构相对超高的动态变化，因此需要针对现有的恒定水位条件下越浪量计算公式进行改进。通过FLUENT软件模拟真实风暴潮水文条件下的越浪过程，分析变水位条件下波浪谱的变化特征；在此基础上，对现有的Eurotop（2018）越浪量公式进行修正，建立了适用于变水位条件的相对等效超高越浪量计算公式，拓展了Eurotop（2018）公式的适用范围并提高了其计算精度。

During storm surges, variations in water levels lead to dynamic changes in the relative freeboard of sea dike structures, necessitating improvements to the existing wave overtopping discharge formulas designed for constant water levels. To address this, this study uses FLUENT software to simulate wave overtopping processes under realistic storm surge hydrodynamic conditions, and analyzes the spectral characteristics of waves under varying water levels. Based on these analyses, the Eurotop (2018) wave overtopping formula is revised, and a new calculation formula for wave overtopping discharge is developed by introducing the concept of relative equivalent freeboard under variable water levels. This approach extends the applicability of the Eurotop (2018) formula and enhances its computational accuracy.

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