Computational Acoustic Beamforming for Noise Source Identification for Small Wind Turbines

Figure 16

Spectra of the A-weighted sound pressure level (SPLA) for an inflow velocity of 9 m s⁻¹ at hub height. The continuous lines show the narrow-band SPLA spectra. The bars correspond to the SPLA spectra frequency averaged over one-third octave bands (blue bar: numerical results; black bar: experimental data (EXP)).