Experimental Investigation of the Wind Turbine Blade Root Flow | Zendy

Büşra Akay | Zendy; Carlos Ferreira | Zendy; Gerard van Bussel | Zendy; G. Tescione | Zendy

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Experimental Investigation of the Wind Turbine Blade Root Flow

Author(s) -

Büşra Akay,

Carlos Ferreira,

Gerard van Bussel,

G. Tescione

Publication year - 2010

Publication title -

50th aiaa aerospace sciences meeting including the new horizons forum and aerospace exposition

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2010-641

Subject(s) - blade (archaeology) , marine engineering , root (linguistics) , turbine , turbine blade , flow (mathematics) , wind power , aerospace engineering , environmental science , engineering , mechanical engineering , geology , mechanics , physics , electrical engineering , philosophy , linguistics

Several methods from experimental to analytical are used to investigate the aerodynamics of a horizontal axis wind turbine. To understand 3D and rotational effects at the root region of a wind turbine blade, correct modeling of the flow field is essential. Aerodynamic models need to be validated by accurate experimental data. In this paper, the experimental results of the aerodynamic behavior of a model wind turbine blade, by focusing on the blade root flow, are presented. The measurements are performed on a 2 bladed rotor having 1 m radius by means of Stereo Particle Image Velocimetry in a wind tunnel. The spanwise velocity distribution on the suction side of the blade is determined in detail. It shows a complex flow pattern in the root region and positive spanwise flow component apparent at radial stations beyond r/R=0.4 at the leading edge (z/c=0.25)

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