風(fēng)暴潮期間水位變化條件下的海堤越浪量研究

作者：張旭  楊亞婷

單位：黃河水利職業(yè)技術(shù)學(xué)院, 河南 開封 475000

關(guān)鍵詞：風(fēng)暴潮 變水位 越浪量 數(shù)值模擬

分類號(hào)：P731.22

出版年·卷·期（頁碼）：2025·42·第一期（64-70）

摘要：

風(fēng)暴潮期間的水位變化會(huì)引起海堤結(jié)構(gòu)相對(duì)超高的動(dòng)態(tài)變化，因此需要針對(duì)現(xiàn)有的恒定水位條件下越浪量計(jì)算公式進(jìn)行改進(jìn)。通過FLUENT軟件模擬真實(shí)風(fēng)暴潮水文條件下的越浪過程，分析變水位條件下波浪譜的變化特征；在此基礎(chǔ)上，對(duì)現(xiàn)有的Eurotop（2018）越浪量公式進(jìn)行修正，建立了適用于變水位條件的相對(duì)等效超高越浪量計(jì)算公式，拓展了Eurotop（2018）公式的適用范圍并提高了其計(jì)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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