The Impact of Double-layered Rigid Vegetation on Flow Structure



Guan, Yutong, Tang, Xiaonan ORCID: 0000-0002-2434-9341 and Zhang, Yujia
(2021) The Impact of Double-layered Rigid Vegetation on Flow Structure. In: The 9th International Symposium on Environmental Hydraulics, 2021-7-18 - 2021-7-22, Seoul, Korea.

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Abstract

Flow structure in vegetated channels is highly three-dimensional. This study focuses on the characteristics of flow through the mixing layered vegetation partially covered in an open channel. A series of experiments were conducted to investigate the velocity distributions in the vegetated zone under different flow conditions. Reynolds shear stress was calculated based on 3D measurements using ADV (Acoustic Doppler velocimeter). Observed results show that the flow has distinct features in three layers: the lower, mediate, and upper layer. A prominent shear stress layer is found at the upper edge of tall vegetation, indicating strong momentum exchange in this transition region.

Item Type: Conference or Workshop Item (Unspecified)
Uncontrolled Keywords: Reynolds stress; vegetated channel; double-layer vegetation; mixing layer
Depositing User: Symplectic Admin
Date Deposited: 20 Sep 2021 09:18
Last Modified: 18 Jan 2023 21:28
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3137501