非圧縮と圧縮性数値計算コードによる風車翼形の特性予測(流体工学,流体機械)

概要

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There is a continuing trend to wards building even larger wind turbines with energy outputs of several MW, especially for offshore use. In the design process of large-scale wind turbines it is essential to predict the performance of the turbine blades with great accuracy. The prediction through wind tunnel experiments is very difficult because the Reynolds number of the wind turbine model is much smaller than the large-scale wind turbine. Field site predictions are difficult due to wind speed fluctuations. These problems can be avoided by using CFD for predicting the characteristics of wind turbine blades. However, CFD has a weakness in predicting the drag and modeling the stall. In this paper two types of original CFD codes developed in the authors' laboratory are investigated for the flow around a wind turbine blade. The CFD codes are the SIMPLE algorism and the compressible method. The suitability of CFD for the prediction of wind turbine blade performance is studied by validating the computational results with experimental data.
一般社団法人日本機械学会の論文
2003-05-25