抄録
As a countermeasure to water quality control as well as sedimentation due to turbid water inflows in a well-mixed reservoir, downstream control of inflowing dense water by means of placing a wall near a dam, is investigated experimentally. Effects of a fence placed upstream of the reservoir on plunge flows, controlled by a wall, are examined as well. It is found that the wall is capable of efficiently displacing the inflowing dense water out of the reservoir and maintaining the position of plunge point in stable condition. It is also found that the fence does not contribute to the displacing inflow water, but may contributes to stabilizing plunge point, dependent on the installed position and submerged depth of the fence.
