The effect of flight on blade surface pressures and propeller noise was reported. There were significant differences in blade surface pressures and far-field noise between static and flight conditions. The static data showed many high-intensity, tone-like peaks whereas the flight data was generally free from tones. The turbulence ingested by the propeller operating statically was dominated by long, thin eddies. In flight the scale of the turbulence was greately reduced from that observed statically.
The Influence of Forward Flight on Propeller Noise
1977
517 pages
Report
Keine Angabe
Englisch
The Influence of Forward Flight on Propeller Noise
NTRS | 1977
|Noise field of rotating propeller in forward flight
Engineering Index Backfile | 1963
|NOISE FIELD OF A ROTATING PROPELLER IN FORWARD FLIGHT
AIAA | 1963
|