Communications on Hydraulic and Geotechnical Engineering: Simulation of Meandering River Processes.

摘要

A simple mathematical model for the simulation of river meandering processes is presented and analyzed in the report. The model is schematized as follows: computation of steady-state flow field and riverbed topography; and computation of bank erosion rate as a function of the near-bank hydraulic and morphological properties. The model is linear for the prediction of flow field and river bed topography, while geometrical non-linearities arise from the bank erosion equation. The flow and river bed model is derived by fully coupling flow field, bed topography and sediment transport and it (roughly) accounts for the secondary flow momentum convection.