Recent Advances in Passive Acoustic Localization Methods via Aircraft and Wake Vortex Aeroacoustics
Abstract
:1. Introduction
1.1. Context
1.2. Motivation
1.3. Organization of the Paper
2. Aircraft Noise Sources for Tracking
2.1. Airframe Noise
High-Lift Device Noise
2.2. Propulsion Systems
2.2.1. Jet Propulsion Noise
2.2.2. Propeller Noise
3. Acoustic Features of Wing Tip Vortices
3.1. Characterizing Wing Tip Vortices
3.2. Analytical Vortex Flow
3.3. Acoustic Models for Vortex Sound
- Core vibrations are excited by initial conditions or instabilities;
- Unsteady transport of the vortex, including possible interactions with secondary vortices, shed from the atmospheric boundary layer;
- Vortex core motion is excited by intermittent turbulent structure;
- Unsteady advection of turbulence around the vortex core.
3.4. Spectra of Vortex Wake Acoustics
3.5. Acoustic Features in the Decay Region
4. Sound Propagation through the Atmosphere
5. Acoustic Source Localization
5.1. Theoretical and Experimental Considerations
5.1.1. Noise Sources
5.1.2. Acoustic Measurement and Transformation
5.2. Beamforming
5.3. Machine Learning Approaches
Other Works
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Joshi, A.; Rahman, M.M.; Hickey, J.-P. Recent Advances in Passive Acoustic Localization Methods via Aircraft and Wake Vortex Aeroacoustics. Fluids 2022, 7, 218. https://doi.org/10.3390/fluids7070218
Joshi A, Rahman MM, Hickey J-P. Recent Advances in Passive Acoustic Localization Methods via Aircraft and Wake Vortex Aeroacoustics. Fluids. 2022; 7(7):218. https://doi.org/10.3390/fluids7070218
Chicago/Turabian StyleJoshi, Arnav, Mustafa M. Rahman, and Jean-Pierre Hickey. 2022. "Recent Advances in Passive Acoustic Localization Methods via Aircraft and Wake Vortex Aeroacoustics" Fluids 7, no. 7: 218. https://doi.org/10.3390/fluids7070218