抄録
The cross-flow wind turbine has high torque and low speed characteristics and the structure are very simple. However, even if the power coefficient is high, it is about 10%. The purpose of this paper is to show how we can improve the power coefficient by applying a casing, which has a nozzle and a diffuser. In this research, the performance of a cross-flow turbine simple substance and the flow state of the circumference of a rotor, and the internal flow were first cleared up for the purpose of the improvement in a performance of a cross-flow wind turbine. Furthermore, in order to raise a power coefficient, cylindrical casing which has a nozzle and diffuser was installed. And the effect of cylindrical casing was investigated from an experiment and numerical analysis.
