Drag Force Modeling of Surface Wave Dissipation by a Vegetation Field
In this paper, we explore the use of coastal vegetation as a natural barrier to defend our shoreline from hazards caused by large wind waves, storm surges, and tsunamis. A numerical model based on XBeach is employed to evaluate the wave damping by vegetation. An explicit formula for the required dra...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/9/2513 |
| _version_ | 1797554222827307008 |
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| author | Tze-Yi Yang I-Chi Chan |
| author_facet | Tze-Yi Yang I-Chi Chan |
| author_sort | Tze-Yi Yang |
| collection | DOAJ |
| description | In this paper, we explore the use of coastal vegetation as a natural barrier to defend our shoreline from hazards caused by large wind waves, storm surges, and tsunamis. A numerical model based on XBeach is employed to evaluate the wave damping by vegetation. An explicit formula for the required drag coefficient used to help describe the additional force imposed by the vegetation is developed through a series of numerical experiments. Overall, our predictions agree reasonably with available laboratory data in the literature for various incident wave conditions and vegetation configurations. Our analysis suggests that a small unvegetated open space in the middle of a vegetation strip does not have a significant impact on the amount of wave height attenuation at the exit of the vegetated bed. |
| first_indexed | 2024-03-10T16:27:39Z |
| format | Article |
| id | doaj.art-9f4926f79f0642338d0fc26989a20c45 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T16:27:39Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-9f4926f79f0642338d0fc26989a20c452023-11-20T13:05:04ZengMDPI AGWater2073-44412020-09-01129251310.3390/w12092513Drag Force Modeling of Surface Wave Dissipation by a Vegetation FieldTze-Yi Yang0I-Chi Chan1Department of Civil Engineering, National Taiwan University, Taipei 10617, TaiwanDepartment of Civil Engineering, National Taiwan University, Taipei 10617, TaiwanIn this paper, we explore the use of coastal vegetation as a natural barrier to defend our shoreline from hazards caused by large wind waves, storm surges, and tsunamis. A numerical model based on XBeach is employed to evaluate the wave damping by vegetation. An explicit formula for the required drag coefficient used to help describe the additional force imposed by the vegetation is developed through a series of numerical experiments. Overall, our predictions agree reasonably with available laboratory data in the literature for various incident wave conditions and vegetation configurations. Our analysis suggests that a small unvegetated open space in the middle of a vegetation strip does not have a significant impact on the amount of wave height attenuation at the exit of the vegetated bed.https://www.mdpi.com/2073-4441/12/9/2513coastal vegetationwave attenuationdrag coefficientXBeach |
| spellingShingle | Tze-Yi Yang I-Chi Chan Drag Force Modeling of Surface Wave Dissipation by a Vegetation Field Water coastal vegetation wave attenuation drag coefficient XBeach |
| title | Drag Force Modeling of Surface Wave Dissipation by a Vegetation Field |
| title_full | Drag Force Modeling of Surface Wave Dissipation by a Vegetation Field |
| title_fullStr | Drag Force Modeling of Surface Wave Dissipation by a Vegetation Field |
| title_full_unstemmed | Drag Force Modeling of Surface Wave Dissipation by a Vegetation Field |
| title_short | Drag Force Modeling of Surface Wave Dissipation by a Vegetation Field |
| title_sort | drag force modeling of surface wave dissipation by a vegetation field |
| topic | coastal vegetation wave attenuation drag coefficient XBeach |
| url | https://www.mdpi.com/2073-4441/12/9/2513 |
| work_keys_str_mv | AT tzeyiyang dragforcemodelingofsurfacewavedissipationbyavegetationfield AT ichichan dragforcemodelingofsurfacewavedissipationbyavegetationfield |