摘要：The result of a fine sediment transport Lagrangean model applied to the Paraíba
do Sul river estuary (Brasil) is presented. The sedimentation velocity is
computed by the Farley and Morel flocculation model and the floc diameter by an
iterative algorithm. The floc differential density is determined by parameters
in laboratory experiments using disk and Couette flocculator. The floc resistant
stress was computed by the average fractal dimension both the flocs developed by
shear stress and by differential sedimentation. The diameter and concentration
floc were compared with survey data of January, 2004. The flocs formation in the
estuarine reach is about 32 µm diameter and it is owing to the turbulent shear
stress. The sediments transport occurs near the seashore regions in freshwater,
for river mean flow conditions.
关键词：flocs, particles, flocculation, Paraíba do Sul
