On the effect of different upstream schemes on the simulation of the antidunes propagation

摘要

The computational simulation of hydro- and morphodynamic processes and the development of adapted numerical methods is currently a wide field of research. Especially morphological models normally assume subcritical flow (Vasquez, Millar & Steffler, 2005). Phenomena like antidunes cause numerical instabilities because the bed celerity is opposite the direction of sediment transport.