Forced pitch motion of wind turbines

The Science of Making Torque from Wind

Leble, V.^1 ; Barakos, G.^1

School of Engineering, University of Glasgow, Glasgow, United Kingdom^1

关键词: Aero-dynamic performance;    Amplitude of oscillation;    Arbitrary Lagrangian Eulerian formulations;    Moving boundaries;    Pitching oscillation;    Time dependent domains;    Turbine performance;    Vortex ring state;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/2/022042/pdf
DOI  :  10.1088/1742-6596/753/2/022042

来源: IOP

【 摘 要 】

The possibility of a wind turbine entering vortex ring state during pitching oscillations is explored in this paper. The aerodynamic performance of the rotor was computed using the Helicopter Multi-Block flow solver. This code solves the Navier-Stokes equations in integral form using the arbitrary Lagrangian-Eulerian formulation for time-dependent domains with moving boundaries. A 10-MW wind turbine was put to perform yawing and pitching oscillations suggesting the partial vortex ring state during pitching motion. The results also show the strong effect of the frequency and amplitude of oscillations on the wind turbine performance.