Application of a Beamforming Technique to the Measurement of Airfoil Leading Edge Noise
Figure 12
Leading edge noise third-octave band sound pressure levels, nominal flow speed = 35 m/s ( = 548,000), , (orange rectangle) 130,200, (faint blue circle) 8,200, (dark blue triangle) 1,000 Pa , (grey —) empty test section, - - - Amiet model [5] according to (1), ⋯ auto–spectrum of one single array microphone for a measurement at the nonporous reference airfoil.
