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

引用

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