Journal article
A 3D non-hydrostatic model to predict flow and sediment transport in loose-bed channel bends
Journal of Hydraulic Research, Vol.46(3), pp.356-372
05/01/2008
DOI: 10.3826/jhr.2008.3328
Abstract
The validation and application of a model to solve for the flow, the sediment transport, and bed morphology changes in open channels is discussed. The non-hydrostatic model solves the three-dimensional (3D) incompressible, Reynolds-Averaged Navier-Stokes (RANS) equations in generalized curvilinear coordinates. The model uses adaptive grids in the vertical direction needed to account for changes in the free surface elevation and bed levels due to erosion/deposition at the bed as the code converges toward steady state (equilibrium conditions). The model is used to predict flow and sediment transport through straight and curved open channels, including the 140? open channel bend studied by Olesen (1985) and the 193? very sharp bend studied by Blanckaert (2002). An estimate of the peak non-dimensional shear stress at the banks is deduced function of the ratio between the radius of curvature of the bend and the channel width
Details
- Title: Subtitle
- A 3D non-hydrostatic model to predict flow and sediment transport in loose-bed channel bends
- Creators
- Jie Zeng - Operation and Data Management Division, South Florida Water Management DistrictGeorge Constantinescu - Civil and Environmental Engineering Department,IIHR-Hydroscience and Engineering , The University of Iowa, Stanley Hydraulics LaboratoryLarry Weber - Civil and Environmental Engineering Department, IIHR-Hydroscience and Engineering , The University of Iowa, Stanley Hydraulics Laboratory
- Resource Type
- Journal article
- Publication Details
- Journal of Hydraulic Research, Vol.46(3), pp.356-372
- Publisher
- Taylor & Francis Group
- DOI
- 10.3826/jhr.2008.3328
- ISSN
- 0022-1686
- eISSN
- 1814-2079
- Language
- English
- Date published
- 05/01/2008
- Academic Unit
- Civil and Environmental Engineering; Public Policy Center (Archive)
- Record Identifier
- 9983991976302771
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