SHI Yong, LUAN Zhen-yu, HU Si-yi. Numerical modeling of flow-sediment transport in the middle-lower reach of the Yangtze River[J]. Advances in Water Science, 2005, 16(6): 840-848.
Citation: SHI Yong, LUAN Zhen-yu, HU Si-yi. Numerical modeling of flow-sediment transport in the middle-lower reach of the Yangtze River[J]. Advances in Water Science, 2005, 16(6): 840-848.

Numerical modeling of flow-sediment transport in the middle-lower reach of the Yangtze River

  • According to the characteristics of flow-sediment transport in the middle-lower reaches of the Yangtze River system,a numerical model is established with combination of the 1-D and 2-D unsteady flow and the sediment model to simulate the transport of the flow-sediment and the bed scouring silt ing processes of the middle-lower reaches of the Yangtze River,Dongting Lake and their network Some relevant problems are discussed,including the moving-boundary in the network,the computation patterns of flow-sediment diversion at channel bifurcations,the moving riverbed resistance and the exchange pattern of water-sediment among the rivers and the lake Based on the hydrologic and topographic data of the middle-lower reach of the Yangtze River,the model verification shows good results for the flow transport characterist ics and the riverbed variation patterns for the middle-lower reaches of the Yangtze River,Dongting Lake and their network.
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