水平軸型風車特性の数値解析

抄録

It is difficult to predict only by a wind tunnel experiment, because there are the problems such as the scale effect with respect to the actual wind turbine performance. Therefore, the practical use of CFD that the enough validation was made by experiments becomes more and more important in future. In this study, in order to validate an analysis precision of CFD, the results of two-bladed and three-bladed wind turbines are compared with experiments. The accuracy of the performance prediction was investigated. The possibility that the errors overlooked by the experiments and the unprecedented phenomenon are found has been shown. In addition, for two-bladed and three-bladed wind turbines both, the predictions of the thrust coefficients and the power coefficients are in agreement with those of experiment. The effectiveness of the performance prediction by CFD has been shown.