開水路条件に設置するプロペラ水車への二相流解析の適用とその効果

抄録

A propeller hydroturbine can be used for tidal power current generation system and small hydropower generation. This kind of turbine will be installed near the water surface and wall. Therefore, the flow around the propeller turbine can be influenced by the boundary condition; free surface and wall. In the case of the small hydropower generation, a lot of propeller hydroturbines will be set in an open channel because energy generated by one propeller turbine is small. In this study, flow field near and downstream of the propeller turbine is clarified based on CFD result using the propeller turbine for an agricultural canal which is one of the open channel conditions. As a first stage, this paper shows effects of different analysis condition on the flow field around the impeller.