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Influence of Vertical Resolution and Nonequilibrium Model on Three-Dimensional Calculations of Flow and Sediment Transport |
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| Authors: | Hongwei Fang Guojian He Lixu Wang |
| Affiliation: | 1Professor, Dept. of Hydraulic Engineering, State Key Laboratory of Hydroscience and Engineering, Tsinghua Univ., Beijing 100084, China (corresponding author). E-mail: fanghw@tsinghua.edu.cn 2Doctor, Dept. of Hydraulic Engineering, State Key Laboratory of Hydroscience and Engineering, Tsinghua Univ., Beijing 100084, China. 3Research Engineer, Beijing Institute of Hydraulic Research, Beijing 100044, China. |
| Abstract: | This note, using a three-dimensional model of river flow and sediment transport, examines the effect of the vertical resolution and the choice a nonequilibrium adaptation length Ls in predicting flow and sediment transport around groins in China’s Yongding River. The results show that a fine vertical grid and nonequilibrium sediment transport model provide good predictions, especially on the river bed profile with an obvious main channel and flood plain. |
| Keywords: | Three-dimensional flow Numerical models River flow Sediment transport China Equilibrium |