Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Two-Dimensional Numerical Modeling of Flow Pattern and Bed Topography in Channel Bend
Abstract An improved two-dimensional (2D) depth-averaged model for hydrodynamic, sediment transport, and morphological adjustment is proposed in an orthogonal curvilinear grid system. A hydrodynamic sub-model considers the phase lag effect of the secondary flow by solving the transport equation of the streamwise vorticity and subsequently converts it into acceleration terms in the flow momentum equation. A sediment sub-model considers the influence of selective sorting and incorporates a simple simulation method to describe changes in the grain size distribution of the bed surface. The 2D numerical model was subsequently applied to different channel bend experiments. Comparison of the model simulation results and the measurements presented acceptable agreement, validating the capability of the 2D model for predicting the flow patterns and bed evolution in river bends.
Two-Dimensional Numerical Modeling of Flow Pattern and Bed Topography in Channel Bend
Abstract An improved two-dimensional (2D) depth-averaged model for hydrodynamic, sediment transport, and morphological adjustment is proposed in an orthogonal curvilinear grid system. A hydrodynamic sub-model considers the phase lag effect of the secondary flow by solving the transport equation of the streamwise vorticity and subsequently converts it into acceleration terms in the flow momentum equation. A sediment sub-model considers the influence of selective sorting and incorporates a simple simulation method to describe changes in the grain size distribution of the bed surface. The 2D numerical model was subsequently applied to different channel bend experiments. Comparison of the model simulation results and the measurements presented acceptable agreement, validating the capability of the 2D model for predicting the flow patterns and bed evolution in river bends.
Two-Dimensional Numerical Modeling of Flow Pattern and Bed Topography in Channel Bend
Xiao, Yi (Autor:in) / Liu, Jie (Autor:in) / Qin, Cuicui (Autor:in) / Xu, Fang (Autor:in)
2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
BKL:
43.00
Umweltforschung, Umweltschutz: Allgemeines
/
43.00$jUmweltforschung$jUmweltschutz: Allgemeines
Two-Dimensional Numerical Modeling of Flow Pattern and Bed Topography in Channel Bend
| Springer Verlag | 2022
Bed Topography and Sediment Sorting in Channel Bend with Unsteady Flow
| British Library Online Contents | 1995
Bed Topography and Sediment Sorting in Channel Bend with Unsteady Flow
| Online Contents | 1995
Experimental Study of Flow Pattern in U-Shape Bend Channel
| British Library Conference Proceedings | 2004
Accurate Numerical Modeling for 1D Open-Channel Flow with Varying Topography
| DOAJ | 2023