海堤提级工程潜堤消浪特性数值计算研究

Numerical calculation of wave dissipation characteristics of submerged breakwater in sea embankment upgrading project

随着城市能级的提升,其海堤防御能力的要求也同步提升,文章以福建省长乐市外文武围垦海堤提级工程为例,采用FLUENT软件建立数值波浪水槽,在工程海域已知堤前水深、波浪和控制海堤堤顶高程不变条件下,考虑实体斜坡式潜堤断面尺度、离岸距离等参数变化的组合方案,计算研究实体斜坡式潜堤方案的消浪效果及其消浪特性,确定潜堤最佳尺度和离岸距离。

With the improvement of urban energy level, the defense ability of the seawall is also improved simultaneously. In this paper, taking the upgrading project of Waiwenwu reclamation seawall in Changle City of Fujian Province as an example, the numerical wave flume was established by using FLUENT software. Under the condition that the water depth, wave in front of the seawall and the elevation of the top of the old seawall were known in the project sea area, the changes of parameters such as cross-section scale and offshore distance of the solid slope submerged dike were considered. Combined with the scheme, the wave dissipation effect and wave dissipation characteristics of the solid slope submerged dike scheme were calculated and studied, and the optimal scale and offshore distance of the submerged dike were determined.