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Journal ArticleDOI

Analytical model of the mean velocity distribution in an open channel with double-layered rigid vegetation

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TLDR
In this article, an analytical model for predicting the vertical distribution of mean streamwise velocity in an open channel with double-layered rigid vegetation is proposed, and good agreement between the analytical predictions and experimental data demonstrated the validity of the model.
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This article is published in Advances in Water Resources.The article was published on 2014-07-01. It has received 78 citations till now. The article focuses on the topics: Velocity gradient & Reynolds stress.

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Journal ArticleDOI

The structure of turbulent flow through submerged flexible vegetation

TL;DR: In this paper, the hydrodynamics of turbulent flow through submerged flexible vegetation are investigated in a flume using acoustic Doppler velocimetery (ADV) measurements, and the flow characteristics such as the energetics and momentum transfer derived from conventional spectral and quadrant analyses are considered as the flow encounters a finite vegetation patch.
Journal ArticleDOI

Flow dynamics and sediment transport in vegetated rivers: A review

TL;DR: A review of methods, general laws, qualitative cognition, and quantitative models regarding the interplay between aquatic plants, flow dynamics, and sediment transport in vegetated rivers is in order as mentioned in this paper.
Journal ArticleDOI

Interactions between vegetation, water flow and sediment transport: A review

TL;DR: In this paper, the relationship between vegetation and the sediment transport is discussed, and the effect of vegetation characteristics, such as shape, flexibility and the height, have significant effects on the flow structures.

Turbulence in Open-Channel Flows

Iehisa Nezu
TL;DR: A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river, can be found in this article, where the statistical theory of turbulence and coherent structures in open channel flows and boundary layers are discussed.

Hydraulic resistance of submerged rigid vegetation derived from first order closure models

Davide Poggi, +1 more
TL;DR: In this paper, the Darcy-Weisbach friction factor (f) was shown to vary with three canonical length scales that can be either measured or possibly inferred from remote sensing products Hw, hc, and the adjustment length scale Lc = (Cda)−1, where Cd is the drag coefficient.
References
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Book

Turbulence in open-channel flows

Iehisa Nezu
TL;DR: A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river, can be found in this paper, where the statistical theory of turbulence and coherent structures in open channel flows and boundary layers are discussed.

Fluid-dynamic drag

S. F. Hoerner
Book ChapterDOI

Coherent eddies and turbulence in vegetation canopies: The mixing-layer analogy

TL;DR: In this paper, the authors argue that the active turbulence and coherent motions near the top of a vegetation canopy are patterned on a plane mixing layer, because of instabilities associated with the characteristic strong inflection in the mean velocity profile.
Journal ArticleDOI

Flow and Transport in Regions with Aquatic Vegetation

TL;DR: In this paper, the mean and turbulent flow and mass transport in the presence of aquatic vegetation is described. But the authors do not consider the effect of canopy-scale vortices on mass transport.
Journal ArticleDOI

The effect of vegetation density on canopy sub-layer turbulence

TL;DR: In this paper, a phenomenological model that describes the structure of turbulence within the canopy sublayer (CSL) is developed, which decomposes the space within the CSL intothree distinct zones: the deep zone is dominated by vortices connected with vonKarman vortex streets, butperiodically interrupted by strong sweep events whose features are influenced by canopy density.
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