ヨー状態における風車周囲流れ場と翼面上圧力に関する研究

概要

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This paper shows results of flow field measurements around a horizontal axis wind turbine in various yawed flow conditions and pressure distribution measurements on a rotor blade of the wind turbine. These measurements were carried out with 2.4m-diameter rotor with pressure sensors and a 2-dimensional laser Doppler velocimetry for each azimuth angles in a wind tunnel. As the results, aerodynamic forces of the blade based on the pressure measurements change according to the angle of attack during rotation. So wake of the yawed rotor becomes asymmetric for the rotor axis. Furthermore, the relations between aerodynamic forces and azimuth angles change according to tip speed ratio. By the analysis of the results, relations between the flow field and the aerodynamic forces for each azimuth angles were clarified.
ターボ機械協会の論文
2008-12-10