Wave Decay by Submerged Rigid Vegetation Under Orthogonal Wave‐Current Conditions

Abstract Coastal vegetation has drawn significant attention as a nature‐based solution due to its role in wave attenuation. While the wave energy decay by vegetation has been studied under pure‐wave and co‐directional wave‐current conditions, little research has focused on orthogonal wave‐current co...

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Main Authors: Zichen Xu, Jiarui Lei
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Geophysical Research Letters
Subjects:
Online Access:https://doi.org/10.1029/2024GL110408
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author Zichen Xu
Jiarui Lei
author_facet Zichen Xu
Jiarui Lei
author_sort Zichen Xu
collection DOAJ
description Abstract Coastal vegetation has drawn significant attention as a nature‐based solution due to its role in wave attenuation. While the wave energy decay by vegetation has been studied under pure‐wave and co‐directional wave‐current conditions, little research has focused on orthogonal wave‐current conditions, which represent propagating waves and longshore currents in natural coastal environments. An analytical model is derived that incorporates various input parameters, including current‐to‐wave velocity ratio, wave height, wave period, water depth, and vegetation properties, to describe wave decay by rigid submerged vegetation under orthogonal wave‐current conditions. Force experienced by individual cylinders was measured, revealing that the drag coefficient of waves is applicable to orthogonal wave‐current conditions. Wave heights were measured along vegetation patches. The presence of an orthogonal current significantly enhanced wave decay by vegetation. The findings of this study underscore the more complicated orthogonal wave‐current conditions and provide valuable insights for future coastal protection strategies incorporating nature‐based solutions.
format Article
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institution Kabale University
issn 0094-8276
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language English
publishDate 2024-12-01
publisher Wiley
record_format Article
series Geophysical Research Letters
spelling doaj-art-cd1f8b5a9cac42ed8f1c766a001312ef2025-08-20T03:46:58ZengWileyGeophysical Research Letters0094-82761944-80072024-12-015123n/an/a10.1029/2024GL110408Wave Decay by Submerged Rigid Vegetation Under Orthogonal Wave‐Current ConditionsZichen Xu0Jiarui Lei1Department of Civil and Environmental Engineering National University of Singapore Singapore SingaporeDepartment of Civil and Environmental Engineering National University of Singapore Singapore SingaporeAbstract Coastal vegetation has drawn significant attention as a nature‐based solution due to its role in wave attenuation. While the wave energy decay by vegetation has been studied under pure‐wave and co‐directional wave‐current conditions, little research has focused on orthogonal wave‐current conditions, which represent propagating waves and longshore currents in natural coastal environments. An analytical model is derived that incorporates various input parameters, including current‐to‐wave velocity ratio, wave height, wave period, water depth, and vegetation properties, to describe wave decay by rigid submerged vegetation under orthogonal wave‐current conditions. Force experienced by individual cylinders was measured, revealing that the drag coefficient of waves is applicable to orthogonal wave‐current conditions. Wave heights were measured along vegetation patches. The presence of an orthogonal current significantly enhanced wave decay by vegetation. The findings of this study underscore the more complicated orthogonal wave‐current conditions and provide valuable insights for future coastal protection strategies incorporating nature‐based solutions.https://doi.org/10.1029/2024GL110408wave energy decaycoastal vegetationwave‐current flowdecay coefficientdrag coefficient
spellingShingle Zichen Xu
Jiarui Lei
Wave Decay by Submerged Rigid Vegetation Under Orthogonal Wave‐Current Conditions
Geophysical Research Letters
wave energy decay
coastal vegetation
wave‐current flow
decay coefficient
drag coefficient
title Wave Decay by Submerged Rigid Vegetation Under Orthogonal Wave‐Current Conditions
title_full Wave Decay by Submerged Rigid Vegetation Under Orthogonal Wave‐Current Conditions
title_fullStr Wave Decay by Submerged Rigid Vegetation Under Orthogonal Wave‐Current Conditions
title_full_unstemmed Wave Decay by Submerged Rigid Vegetation Under Orthogonal Wave‐Current Conditions
title_short Wave Decay by Submerged Rigid Vegetation Under Orthogonal Wave‐Current Conditions
title_sort wave decay by submerged rigid vegetation under orthogonal wave current conditions
topic wave energy decay
coastal vegetation
wave‐current flow
decay coefficient
drag coefficient
url https://doi.org/10.1029/2024GL110408
work_keys_str_mv AT zichenxu wavedecaybysubmergedrigidvegetationunderorthogonalwavecurrentconditions
AT jiaruilei wavedecaybysubmergedrigidvegetationunderorthogonalwavecurrentconditions