一次元多層流モデルを用いた微細土砂の貯水池内挙動解析

抄録

The behavior of fine suspended load in the reservoir was analyzed by using numerical simulation model. In this study, a vertical 2-dimensional reservoir hydraulic simulation model was employed that includes the effect of buoyancy caused by water temperature and suspended sediment. This is because density current in the reservoir caused by suspension of sediment typically shows a flow pattern in longitudinal and vertical directions. Validation of the model was tried from the view point of full year variation of sediment behavior and trap efficiency of fine sediment during each flood event. The effect of the redevelopment project being carried out was also estimated by using the model.