Wing effect on jet noise propagation
Abstract
An experimental investigation was carried out in an anechoic chamber to determine the cause of higher flyover noise of jet aircraft with engines under the wings. Results of the experiment indicate that the presence of the wing in the vicinity of the jet enhances the noise produced by the jet alone. The jet is found to have considerable effect on noise enhancement at high frequency where strong refraction effects on sound waves occur.
- Publication:
-
American Institute of Aeronautics and Astronautics Conference
- Pub Date:
- June 1980
- Bibcode:
- 1980aiaa.confT....W
- Keywords:
-
- Acoustic Measurement;
- Aircraft Structures;
- Convergent Nozzles;
- Jet Aircraft Noise;
- Noise Propagation;
- Wings;
- Aerodynamic Noise;
- Aircraft Models;
- Anechoic Chambers;
- Boundary Layers;
- Data Acquisition;
- Exhaust Velocity;
- High Frequencies;
- Jet Exhaust;
- Noise Intensity;
- Refracted Waves;
- Acoustics