Abstract
It is the purpose of this report to present and verify a prediction method developed to analyze behaviors of water temperature and turbidity in a pumped storage reservoir. The features of this method are (1) to treat a density current by applying a numerical method for incompressible flow with density variation, (2) to calculate a fluid density stratification by using κ-ε turbulent model and (3)to be applied to a flow involving free surface with VOF method. The prediction method is applied to local measurements in Shin-Takase pumped storage reservoir and its 1200-scale model experiments. The obtained numerical solutions of water temperature and the turbidity distributions agree well with those results.