期刊
COMPTES RENDUS MECANIQUE
卷 339, 期 4, 页码 226-234出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crme.2011.02.001
关键词
Computational fluid mechanics; 1D-2D coupling model; Hydrodynamic modeling; Saint-Venant equations; Main channel/floodplain interactions
类别
资金
- GEI (Ginger Environnement et Infrastructures), GINGER Group company
- CIFRE [2006/838]
A shallow water-based model for river-floodplain interaction (SW12D for Shallow Water 1D-2D) is presented. The main channel and floodplain are discretized using 1D and 2D elements respectively. The proposed model provides an improved description of hydraulic phenomena over existing models by (i) including lateral momentum transfer between the main channel and the floodplain, (ii) taking the 2D nature of the flow into account within the 1D elements that describe the main channel. This allows for a better description of phenomena such as head losses due to channel bends and meanders, and meander shortcuts during floods. (C) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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