Steady Flow Over a Finite Patch of Submerged Flexible Vegetation
Abstract An immersed boundary‐finite element with soft‐body dynamics has been implemented to study steady flow over a finite patch of submerged flexible aquatic vegetation. The flow structure interaction model can resolve the flow interactions with flexible vegetation, and hence the reconfiguration...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
|
| Series: | Water Resources Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2023WR035222 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850211503189262336 |
|---|---|
| author | Hyun Dong Kim Xiao Yu David Kaplan |
| author_facet | Hyun Dong Kim Xiao Yu David Kaplan |
| author_sort | Hyun Dong Kim |
| collection | DOAJ |
| description | Abstract An immersed boundary‐finite element with soft‐body dynamics has been implemented to study steady flow over a finite patch of submerged flexible aquatic vegetation. The flow structure interaction model can resolve the flow interactions with flexible vegetation, and hence the reconfiguration of vegetation blades to ambient flow. Flow dynamics strongly depend on two dimensionless parameters, namely vegetation density and Cauchy number (defined as the ratio of the fluid drag force to the elastic force). Five different flow patterns have been identified based on vegetation density and Cauchy number, including the limited reach, swaying, “monami” A, “monami” B with slow moving interfacial wave, and prone. The “monami” B pattern occurred at high vegetation density and is different from “monami” A, in which the passage of Kelvin‐Helmholtz billows strongly affects the vegetation interface. With soft‐body dynamics, blade‐to‐blade interactions can also be resolved. At high vegetation density, the hydrodynamic interactions play an important role in blade‐to‐blade interactions, where adjacent vegetation blades interact via the interstitial fluid pressure. At low vegetation density, direct contacts among vegetation blades play important roles in preventing unphysical penetration of vegetation blades. |
| format | Article |
| id | doaj-art-04ad3621aa1c41b8a10dea4f50d356fd |
| institution | OA Journals |
| issn | 0043-1397 1944-7973 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Water Resources Research |
| spelling | doaj-art-04ad3621aa1c41b8a10dea4f50d356fd2025-08-20T02:09:32ZengWileyWater Resources Research0043-13971944-79732024-01-01601n/an/a10.1029/2023WR035222Steady Flow Over a Finite Patch of Submerged Flexible VegetationHyun Dong Kim0Xiao Yu1David Kaplan2Department of Civil and Coastal Engineering University of Florida Gainesville FL USADepartment of Civil and Coastal Engineering University of Florida Gainesville FL USADepartment of Environmental Engineering University of Florida Gainesville FL USAAbstract An immersed boundary‐finite element with soft‐body dynamics has been implemented to study steady flow over a finite patch of submerged flexible aquatic vegetation. The flow structure interaction model can resolve the flow interactions with flexible vegetation, and hence the reconfiguration of vegetation blades to ambient flow. Flow dynamics strongly depend on two dimensionless parameters, namely vegetation density and Cauchy number (defined as the ratio of the fluid drag force to the elastic force). Five different flow patterns have been identified based on vegetation density and Cauchy number, including the limited reach, swaying, “monami” A, “monami” B with slow moving interfacial wave, and prone. The “monami” B pattern occurred at high vegetation density and is different from “monami” A, in which the passage of Kelvin‐Helmholtz billows strongly affects the vegetation interface. With soft‐body dynamics, blade‐to‐blade interactions can also be resolved. At high vegetation density, the hydrodynamic interactions play an important role in blade‐to‐blade interactions, where adjacent vegetation blades interact via the interstitial fluid pressure. At low vegetation density, direct contacts among vegetation blades play important roles in preventing unphysical penetration of vegetation blades.https://doi.org/10.1029/2023WR035222flow structure interactionflexible submerged vegetationblade‐to‐blade interaction |
| spellingShingle | Hyun Dong Kim Xiao Yu David Kaplan Steady Flow Over a Finite Patch of Submerged Flexible Vegetation Water Resources Research flow structure interaction flexible submerged vegetation blade‐to‐blade interaction |
| title | Steady Flow Over a Finite Patch of Submerged Flexible Vegetation |
| title_full | Steady Flow Over a Finite Patch of Submerged Flexible Vegetation |
| title_fullStr | Steady Flow Over a Finite Patch of Submerged Flexible Vegetation |
| title_full_unstemmed | Steady Flow Over a Finite Patch of Submerged Flexible Vegetation |
| title_short | Steady Flow Over a Finite Patch of Submerged Flexible Vegetation |
| title_sort | steady flow over a finite patch of submerged flexible vegetation |
| topic | flow structure interaction flexible submerged vegetation blade‐to‐blade interaction |
| url | https://doi.org/10.1029/2023WR035222 |
| work_keys_str_mv | AT hyundongkim steadyflowoverafinitepatchofsubmergedflexiblevegetation AT xiaoyu steadyflowoverafinitepatchofsubmergedflexiblevegetation AT davidkaplan steadyflowoverafinitepatchofsubmergedflexiblevegetation |