RECENT PROGRESS OF SEDIMENT TRANSPORT RESEARCH AND PREDICTION OF BED DEFORMATION

Abstract

Recent progress of research on sediment transport, bed deformation and landform evolution was summarized in this paper. It can be much easier than before to conduct a numerical simulation of sediment transport event and bed deformation for the present, but there still remain essential problems. Unsteady and non-equilibrium effect of flow on sediment transport, the effect of cohesive sediment on the bed deformation process in river, and a sediment transport itself in case that the river bed is composed of sediment mixture with a very wide range of size distribution are such problems to be investigated in near future. In addition to this, some results of numerical simulation were illustrated in this paper in order to discuss how we can predict this kind of phenomenon in this research field.