ABSTRACT
A simple mathematical model for the simulation of river meandering proces-ses is presented and analysed. The model is schematized as follows: compu-tation 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.
ACKNOWLEDGEMENTS
This report describes the results of a joint study on river morphology of Delft University of Technology and DELFT HYDRAULICS.
For the duration of the first year of work the author was benefiting by fellowships from Fondazione Ing. Gini (Padua, Italy) and Istituto Veneto di Scienze Lettere ed Arti (Venice, Italy).
The underlying study was carried out under the supervision of Prof. Dr. M. de Vries, Delft University of Technology, and of Mr. N. Struiksma, DELFT HYDRAULICS (first year).
The author would like to express special thanks to Mr. E. Mosselman with whom she had many intriguing exchanges of ideas, often leading to new intuitions. The support of Mr. G. Klaassen, Mr. C. Flokstra and Dr. H.J. de Vriend is acknowledged like wise. Thanks also to Mrs. T. Kleine and Mrs. S. van Driel for typing and re-typing this report.
