Author(s): K. Blanckaert; W. H. Graf
Linked Author(s):
Keywords: Strongly curved flow; Open-channel bend; Secondarycirculation; Experiments
Abstract: The secondary circulation in open-channel bends largely determines the bed topography. It is often described by the¡°Rozovskii model¡± in depth-integrated flow models. Our experimental results indicate that the ¡°Rozovskii model¡± has a tendency to overpredict the strength of the secondary circulation and its effect on the velocity distribution for the case of strongly curved open-channel flow. Both also decrease with increasing curvature ratio; this is in contrast with the unique dependence on the Chezy coefficient predicted by the ¡°Rozovskii model¡±.
Year: 2001