Flow turbulence presented by different vegetation spacing sizes within a submerged vegetation patch
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2024-02-01End of Embargo
2025-02-01Keyword
Velocity profilesAcoustic Doppler Velocimeter (ADV)
Turbulent intensities
Reynolds stress
Turbulent bursting
Vegetated flow
Vegetation spacing sizes
Submerged vegetation
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©2024 China Ship Scientific Research Center. Published by Springer. This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online as above.Peer-Reviewed
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embargoedAccessAccepted for publication
2023-07-21
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This study presents results from a vegetation-induced flow experimental study which investigates 3-D turbulence structure profiles, including Reynolds stress, turbulence intensity and bursting analysis of open channel flow. Different vegetation densities have been built between the adjacent vegetations, and the flow measurements are taken using acoustic Doppler velocimeter (ADV) at the locations within and downstream of the vegetation panel. Three different tests are conducted, where the first test has compact vegetations, while the second and the third tests have open spaces created by one and two empty vegetation slots within the vegetated field. Observation reveals that over 10% of eddies size is generated within the vegetated zone of compact vegetations as compared with the fewer vegetations. Significant turbulence structures variation is also observed at the points in the non-vegetated row. The findings from burst-cycle analysis show that the sweep and outward interaction events are dominant, where they further increase away from the bed. The effect of vegetation on the turbulent burst cycle is mostly obvious up to approximately two-third of vegetation height where this phenomenon is also observed for most other turbulent structure.Version
Accepted manuscriptCitation
John CK, Pu, JH, Guo Y et al. (2024) Flow turbulence presented by different vegetation spacing sizes within a submerged vegetation patch. Journal of Hydrodynamics. 35(6): 1131-1145.Link to Version of Record
https://doi.org/10.1007/s42241-024-0083-xType
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The full text will be available at the end of the publisher's embargo period: 1st Feb 2025ae974a485f413a2113503eed53cd6c53
https://doi.org/10.1007/s42241-024-0083-x
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