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Brief Communication: 2-d Numerical Modeling of the Transformation Mechanism of a Braided Channel : Volume 1, Issue 1 (15/05/2014)

By Xiao, Y.

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Book Id: WPLBN0004020114
Format Type: PDF Article :
File Size: Pages 23
Reproduction Date: 2015

Title: Brief Communication: 2-d Numerical Modeling of the Transformation Mechanism of a Braided Channel : Volume 1, Issue 1 (15/05/2014)  
Author: Xiao, Y.
Volume: Vol. 1, Issue 1
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Shao, X., Xiao, Y., Yang, S. F., Xu, X. M., & Chen, W. X. (2014). Brief Communication: 2-d Numerical Modeling of the Transformation Mechanism of a Braided Channel : Volume 1, Issue 1 (15/05/2014). Retrieved from http://hawaiilibrary.net/


Description
Description: National Inland Waterway Regulation Engineering Research Center, Chongqing Jiaotong University, Chongqing, 400074, China. This paper investigates the controls on the transformation mechanism among different channel patterns. A 2-D depth-averaged numerical model is applied to produce the evolution of channel patterns with complex interactions among water flow, sediment transport, and bank erosion. Changes of the variables as discharge, sediment supply, and vegetation are considered in the numerical experiments, leading to the transformation from a braided pattern into a meandering one. What controls the transformation is discussed with the numerical results: vegetation helps stabilize the cut bank and bar surface, but is not a key in the transition; a decrease in discharge and sediment supply could lead a braided pattern to a meandering one. The conclusion is in agreement with various previous field work, confirming the two dimensional model's potential in predicting the transition between different rivers and improving understanding of patterning processes.

Summary
Brief Communication: 2-D numerical modeling of the transformation mechanism of a braided channel

Excerpt
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