Numerical study of wave transmission over double submerged breakwaters using non-hydrostatic wave model
Numerical study of wave transmission over double submerged breakwaters using non-hydrostatic wave model
复制标题
基于非静水波模型的双潜式防波堤波浪传播数值研究
DOI：
10.1016/j.oceano.2015.07.002
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发表时间：
2015-10
期刊：
影响因子：
2.9
通讯作者：
Li, Huajun
中科院分区：
文献类型：
--
作者：
Wu, Guoxiang;Liu, Fushun;Fan, Hairong;Li, Huajun
本文采用非静力波浪模型SWASH（Simulating Waves till海岸）模拟波浪在双梯形潜堤上的传播。将数值计算结果与物理模型计算结果进行了比较。结果表明，SWASH模型能够较好地模拟波浪在双层潜堤上的传播。详细研究了防波堤间距S/L0（L0为深水波长）和海流等因素对防波堤稳定性的影响。此外，还分析了水流对波浪传播的影响。当相对潜深R/H（R为潜深，H为波高）为1.0时，相对堤间距S/L0约为1.11。海流对S/L0的影响不明显，但会改变海浪谱的形状。高次谐波分量的耗散比低次谐波分量的耗散更明显。
In the present work, a non-hydrostatic wave model SWASH (an acronym of Simulating WAves till SHore) is used to simulate the wave transmission over double trapezoidal submerged breakwaters. The numerical results were compared with the results of the physical model. The comparison indicated the capability of SWASH model to predict the wave transmission over double submerged breakwaters. Influencing factors such as breakwater spacingS/L0, whereL0is the deep-water wavelength, and current were investigated in detail. Moreover, the effects of current on wave transmission were also analyzed. When the relative submerged depthR/H, whereRis the submerged depth andHis the wave height, remains at 1.0, the appropriate relative breakwater spacingS/L0is about 1.11. Current has no obvious effect on the appropriateS/L0, but it will change the shape of wave spectrum. Dissipation of super harmonic wave components is more obvious than that of lower harmonic wave components.
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