期刊
COASTAL ENGINEERING
卷 187, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.coastaleng.2023.104421
关键词
Resolved CFD-DEM coupling; Flume test; Wave erosion; Coastal armour layer; Armour unit shape
In this study, a resolved CFD-DEM coupling procedure was proposed to study the interaction of waves and irregularly shaped armour units. The model was validated by comparing the numerical results with a flume wave erosion test. The influence of armour shape on overtopping discharge, pressure distribution, and vortex structure was also studied.
Coastal armour layers have been commonly used to protect coastal structures from wave erosion. Assessing the stability of armour layers under extreme wave loading is a challenge for engineering design. In this study, we propose a resolved CFD-DEM coupling procedure to study the interaction of waves and irregularly shaped armour units. This model is validated by comparing the numerical results and a flume wave erosion test. The wave surface profiles and wave pressure distribution are reliably reproduced in the simulation. This model can well capture the wave energy dissipation of irregular armour units. Further, wave erosion on two types of armour layers, the cuboid and Dolos armours, are studied in a full-scale prototype model. The motion of individual armour units and the localised failure process under wave impact is observed and analysed in the simulation. We also study the influence of armour shape on overtopping discharge, pressure distribution, and vortex structure. The CFD-DEM method provides an advanced numerical tool for stability analysis and risk assessment of armour layers under the wave impact.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据