Numerical investigation of the effects of rigid emergent vegetation on wave runup and overtopping

被引：11

作者：

Zhao, Chuyan ^{[1
]}

Tang, Jun ^{[1
]}

Shen, Yongming ^{[1
,2
,3
,4
]}

机构：

[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

[2] Guangdong Univ Technol, Inst Environm & Ecol Engn, Key Lab City Cluster Environm Safety, Green Dev Minist Educ, Guangzhou 510006, Peoples R China

[3] Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China

[4] Guangdong Prov Key Lab Water Qual Improvement & Ec, Guangzhou 510006, Peoples R China

来源：

OCEAN ENGINEERING | 2022年 / 264卷

基金：

国家重点研发计划;

关键词：

Wave overtopping; Coastal vegetation; Numerical study; Boussinesq equation; PROPAGATION; ATTENUATION; DISCHARGE; FAILURE;

D O I：

10.1016/j.oceaneng.2022.112502

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

The effects of rigid emergent vegetation on wave overtopping have been studied by numerical simulation in this study. The numerical model is based on second-order fully nonlinear Boussinesq equations and solved by a combination of finite difference and finite volume methods. Physical laboratory results of wave propagation in the vegetated area and wave overtopping on a bare slope were used to validate the capability of the model, and the numerical and experimental results agreed well, which indicated that the model can well predict wave overtopping on a vegetated slope. Then, based on the model, the effects of rigid emergent vegetation on wave overtopping were investigated. The results showed that the wave overtopping volume decreases exponentially with the increase of vegetation volume per unit water volume Vveg/Vw, and the wave overtopping volume can be decreased by 50% when Vveg/Vw equals 0.01.

引用

页数：12

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