Airfoil noise measurement platform
An airfoil noise measurement platform is developed in AANTC based on the anechoic wind tunnel. A microphone array with 56 microphone is used for sound source detection. The diameter is 0.7m and the frequency range is 50-10000 Hz. A laser profiler is used to measure the deformation of flexible airfoils. Ref: Peng Zhou, Siyang Zhong, Xin Zhang, On the effect of velvet structures on trailing edge noise: experimental investigation and theoretical analysis, Journal of Fluid Mechanics, vol. 919, A11, 2021