Version 1
: Received: 2 August 2018 / Approved: 20 August 2018 / Online: 20 August 2018 (11:27:58 CEST)
How to cite:
Tong, X.; Liu, X.; Yang, T.; Hua, Z.; Wang, Z.; Liu, J.; Li, R. Hydraulic Features of Flow through Local Non-Submerged Rigid Vegetation in a Y-Shaped Confluence Channel. Preprints2018, 2018080353. https://doi.org/10.20944/preprints201808.0353.v1
Tong, X.; Liu, X.; Yang, T.; Hua, Z.; Wang, Z.; Liu, J.; Li, R. Hydraulic Features of Flow through Local Non-Submerged Rigid Vegetation in a Y-Shaped Confluence Channel. Preprints 2018, 2018080353. https://doi.org/10.20944/preprints201808.0353.v1
Tong, X.; Liu, X.; Yang, T.; Hua, Z.; Wang, Z.; Liu, J.; Li, R. Hydraulic Features of Flow through Local Non-Submerged Rigid Vegetation in a Y-Shaped Confluence Channel. Preprints2018, 2018080353. https://doi.org/10.20944/preprints201808.0353.v1
APA Style
Tong, X., Liu, X., Yang, T., Hua, Z., Wang, Z., Liu, J., & Li, R. (2018). Hydraulic Features of Flow through Local Non-Submerged Rigid Vegetation in a Y-Shaped Confluence Channel. Preprints. https://doi.org/10.20944/preprints201808.0353.v1
Chicago/Turabian Style
Tong, X., Jingjing Liu and Ruoshui Li. 2018 "Hydraulic Features of Flow through Local Non-Submerged Rigid Vegetation in a Y-Shaped Confluence Channel" Preprints. https://doi.org/10.20944/preprints201808.0353.v1
Abstract
Vegetation has a significant influence on velocity distribution and turbulent energy in a confluence channel. A laboratory measurement with ADV was used to investigate the flow through a Y-shaped confluence channel partially covered with rigid vegetation on its inner bank. In this study, the flow velocities in cases with and without vegetation were measured by the ADV in a Y-shaped confluence channel. The results clearly show that the existence of non-submerged rigid plants has changed the internal flow structure, that the velocity in the non-vegetated area is greater than in the vegetated area, and that there is a large exchange of mass and momentum between the vegetated and non-vegetated areas. The velocity on both sides is significantly reduced when vegetation is present. In the vicinity of tributaries, due to the presence of vegetation, the high-velocity area moved rapidly to the middle of the non-vegetated area, and the secondary flow phenomenon disappeared. In the mainstream, when vegetation was present, circulation disappeared, and the degree of lateral mixing decreased. The presence of vegetation caused a great change in the internal flow structure and made the flow in non-vegetated areas more intense.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
