A recently developed semi-empirical model for predicting the noise generated by conventional-velocity-profile coaxial jets is compared with full-scale flight data and model-scale simulated flight data for high-bypass nozzles. The prediction model has been shown to agree with small-scale static data for primary jet velocities from 215 to 795 m/s for a wide range of area, temperature and velocity ratios between streams. However, there were insufficient model nozzle, simulated flight data available at that time to permit validation of the flight effects prediction. The comparisons presented in this paper demonstrate that the prediction method is also valid in flight.
Comparison of measured and predicted flight effects on high-bypass coaxial jet exhaust noise
American Institute of Aeronautics and Astronautics, Aeroacoustics Conference ; 1983 ; Atlanta, GA
01.04.1983
Aufsatz (Konferenz)
Keine Angabe
Englisch
Comparison of Predicted and Measured Formation Flight Interference Effects
Online Contents | 2004
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