水制周辺における流れの瞬間構造と浮遊砂輸送の関係に関する研究

抄録

Sediment transport, which causes the deformation of river bed, is an important issue in the field of river engineering. In this paper, a laboratory experiment and a three-dimensional calculation with a group of permeable dikes in an open channel were conducted in order to investigate the relationship between instantaneous flow structures and suspended sediment transport mechanisms. For the calculation of suspended sediment transport, the particle-based method was used. The comparison of the experimental results and the calculation results shows that the concentration distributions of suspended sediment in cross-sections are influenced by a secondary flow and horizontal eddies in the shear layer.