Abstract

A numerical model is described that predicts development of meanders and consequent channel wandering. The model is one-dimensional based on a sediment budget with transverse flux components in cross-sections governed by secondary flow. A plan form of channel centre-line is approximated by cubic spline that allows to simulate development of meanders and their downstream shifting. Realistic simulations of hypothetic sinuous and segmental meanders as well as meandering section of the Kolp’ and the Youg Rivers are presented.

Keywords: meandering, river bend, simulation, spiral motion, bank retreat, transverse sediment flux