Experimental investigation on attenuating wave run-up by emergent length and submerged length of rigid vegetation on a composite breakwater

被引：0
作者：
Xu Z. [1 ]
Li Z. [1 ,2 ]
Sun B. [1 ,2 ]
Wang F. [1 ,2 ]
Li L. [1 ]
机构：
[1] School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou
[2] Yellow River Laboratory, Zhengzhou University, Zhengzhou
来源：
Ocean Engineering | 2024年 / 309卷
基金：
中国博士后科学基金;
关键词：
Coastal vegetation; Composite breakwaters; Emergent vegetation; Submerged vegetation; Wave run-up;
D O I：
10.1016/j.oceaneng.2024.118543
中图分类号：
学科分类号：
摘要：
Coastal vegetation not only provides efficient wave attenuation, but also serves to protect and restore the ecological environment, making it a favorable coastal protection measure. Composite breakwaters are a traditional engineering measure with good wave absorption performance. Accordingly, a plant-ecological composite breakwater is proposed. The effects of changes in the emergent and submerged lengths of rigid vegetation on the attenuation of wave run-up on the composite breakwater were investigated using experimental measurements. Cylinders were used to simulate vegetation in the experiment, neglecting their vibration. The results indicate that vegetation can effectively attenuate wave run-up. At larger wave heights, the maximum wave run-up is more sensitive to the submerged length of vegetation, with an attenuation rate of up to 44.6%. At smaller wave heights, the maximum wave run-up is more sensitive to the emergent length of vegetation, with an attenuation rate of up to 23.6%, which decreases with increasing wave period. Furthermore, there are systematic changes in the overall wave run-up trend occur over time for different conditions. © 2024
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