A wind turbine rotor has been constructed for the investigation of airfoil self-noise, rotational noise and blade tower interaction noise. The main aim of this paper is to compare the aerodynamic noise created by stationary and rotating rotor blades. Furthermore, the effect of the tower on noise production, the so called blade tower interaction noise, has also been examined. A peak in the trailing edge noise spectrum has been observed in stationary and rotational blade noise spectra supporting previously published measurements. The effect of the tower was observed at low frequencies, due to the change in aerodynamic loading, and at high frequencies, due to acoustic scattering phenomena.
|Publication status||Published - 1 Jan 2014|
|Event||19th Australasian Fluid Mechanics Conference, AFMC 2014 - |
Duration: 8 Dec 2014 → …
|Conference||19th Australasian Fluid Mechanics Conference, AFMC 2014|
|Period||8/12/14 → …|