A comparison of time-reversal and cross-spectral beamforming for localizing experimental rod-airfoil interaction noise sources

•Different Time-Reversal (TR) implementation methods used for localizing rod-airfoil interaction noise sources.•TR implemented using a dipole phase-correction method yields a single focal spot.•TR without/with phase-correction and Conventional Beamforming (CB) maps are comparable.•TR with facility a...

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Veröffentlicht in:	Mechanical systems and signal processing 2018-10, Vol.111, p.456-491
Hauptverfasser:	Mimani, A., Fischer, J., Moreau, D.J., Doolan, C.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic noise Aeroacoustic time-reversal Airfoil self-scattering Beamforming Computer simulation Cross flow Cross-spectral beamforming Damping Dipoles Flow-induced dipole Formulations Frequencies Mach number Mathematical models Microphones Model testing Modelling Noise pollution Scattering Sink and deconvolution technique Tonal noise Velocity Vortex-turbulence interaction with airfoil Wind tunnel testing Wind tunnels
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