 |
| Titel |
Brief Communication: 2-D numerical modeling of the transformation mechanism of a braided channel |
| VerfasserIn |
Y. Xiao, S. F. Yang, X. Shao, W. X. Chen, X. M. Xu |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
2198-5634
|
| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics Discussions ; 1, no. 1 ; Nr. 1, no. 1 (2014-05-15), S.953-975 |
| Datensatznummer |
250115098
|
| Publikation (Nr.) |
 copernicus.org/npgd-1-953-2014.pdf |
|
|
|
|
|
| Zusammenfassung |
| 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. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|