2000 Volume 44 Pages 795-800
It has been known that organized horizontal vortices are generated at the junctions of main channel and flood plains for two-stage channels, and they yield sediment transport between main channel and flood plains. In the present laboratory tests, it was found that the relations of the organized vortices and lateral suspended sediment transport in compound open channel flow with bank vegetation.
Numerical computations were performed by employing SDS-2DH turbulence model. For channels with bank vegetation, it was found that sediment transport is closely correlated with large scale horizontal vortices which are generated in the main channel and deposition rate takes a maximum value in the vegetation area.
