Add to ORKGAcoustic data are presented from a 40 percent scale model of the 4-bladed BO-105 helicopter main rotor, measured in the large European aeroacoustic wind tunnel, the DNW. Rotor blade-vortex interaction (BVI) noise data in the low speed flight range were acquired using a traversing in-flow microphone array. The experimental apparatus, testing procedures, calibration results, and experimental objectives are fully described. A large representative set of averaged acoustic signals is presented
Models of both the advanced main rotor system and the standard or "baseline" UH-1 main rotor system ...
In a major cooperative research program between 8 European partners, a 40%-geometrically and dynamic...
Blade-vortex interaction noise measurements are analyzed for an AS350B helicopter operated at 7000 f...
Acoustic data are presented from a 40 percent scale model of the four-bladed BO-105 helicopter main ...
Acoustic data from a test of a 40 percent model MBB BO-105 helicopter main rotor are scaled to equiv...
An acoustics test of a 40%-scale MBB BO-105 helicopter main rotor was conducted in the Deutsch-Niede...
A wind tunnel test to study the effects of geometric scale on acoustics and to investigate the appli...
A theoretical and experimental study was conducted to develop a validated first principles analysis ...
A comprehensive model rotor aeroacoustic data base was collected in a large anechoic wind tunnel in ...
In a major cooperative research program between 8 European partners, a geometrically and dynamically...
Acoustic data taken in the anechoic Deutsch-Niederlaendischer Windkanal (DNW) have documented the bl...
The results of a model rotor acoustic test in the Langley 4by 7-Meter Tunnel are used to evaluate a ...
This paper presents the test design, instrumentation set-up, data acquisition, and the results of an...
Significant advances in understanding, modeling, and controlling helicopter rotor noise have been ma...
Acoustic measurements were obtained in a Langley 14 x 22 foot Subsonic Wind Tunnel to study the aero...
Models of both the advanced main rotor system and the standard or "baseline" UH-1 main rotor system ...
In a major cooperative research program between 8 European partners, a 40%-geometrically and dynamic...
Blade-vortex interaction noise measurements are analyzed for an AS350B helicopter operated at 7000 f...
Acoustic data are presented from a 40 percent scale model of the four-bladed BO-105 helicopter main ...
Acoustic data from a test of a 40 percent model MBB BO-105 helicopter main rotor are scaled to equiv...
An acoustics test of a 40%-scale MBB BO-105 helicopter main rotor was conducted in the Deutsch-Niede...
A wind tunnel test to study the effects of geometric scale on acoustics and to investigate the appli...
A theoretical and experimental study was conducted to develop a validated first principles analysis ...
A comprehensive model rotor aeroacoustic data base was collected in a large anechoic wind tunnel in ...
In a major cooperative research program between 8 European partners, a geometrically and dynamically...
Acoustic data taken in the anechoic Deutsch-Niederlaendischer Windkanal (DNW) have documented the bl...
The results of a model rotor acoustic test in the Langley 4by 7-Meter Tunnel are used to evaluate a ...
This paper presents the test design, instrumentation set-up, data acquisition, and the results of an...
Significant advances in understanding, modeling, and controlling helicopter rotor noise have been ma...
Acoustic measurements were obtained in a Langley 14 x 22 foot Subsonic Wind Tunnel to study the aero...
Models of both the advanced main rotor system and the standard or "baseline" UH-1 main rotor system ...
In a major cooperative research program between 8 European partners, a 40%-geometrically and dynamic...
Blade-vortex interaction noise measurements are analyzed for an AS350B helicopter operated at 7000 f...