2006 年 22 巻 p. 963-968
Many follow-up studies have already been carried out and they reported the effectiveness of the water-route to enhance exchange of water and improve water quality. However, at the planning stage of the construction of water-route, it is not easy to determine the appropriate plain arrangement of the water-route. In this study, the authors proposed a procedure for evaluating the effectiveness of the plain arrangement of water-route using the shear velocity in the objective region through numerical simulations of tidal current. Three types of plane arrangements were examined and found that the shear stress at the bottom clearly increased in the cases where the water-routes exist. However, we could not found any significant difference between three types of arrangements.