Abstract
In this paper, turbidity behavior in a pumped storage reservoir is examined using a prediction method which enables to predict it well with taking account of turbulent flow, water temperature, turbidity and change of water level. The prediction results indicate that the upward flow and the turbulent diffusion, which are caused by a high-speed flow from an intake, may carry turbidity in the lower layer of the reservoir to the upper layer in plant operation. The present study suggests that adequate selection of operational conditions would suppress the increase of the turbidity at the upper layer of the reservoir. It means that there is a possibility to mitigate the turbidity with the optimal plant operation.
