Nearfield unsteady pressures at cruise mach numbers for a model scale counter-rotation open rotor

18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference)

Volumn , Issue , 2012, Pages

  Stephens, David B ^a  

^a NASA GLENN RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AERODYNAMICS; AVIATION; MACH NUMBER;

BLADE PITCH; GENERATING MECHANISM; MODEL SCALE; OPEN ROTORS; PERFORMANCE MEASUREMENTS; REAR ROTORS; ROTOR SPEED; UNSTEADY PRESSURES;

AEROACOUSTICS;

EID: 85085718272     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.2012-2264     Document Type: Conference Paper

References (11)

1. Dittmar, J. H., "Cruise Noise of Counterrotation Propeller at Angle of Attack in Wind Tunnel, " NASA/TM-88869, October 1986.
2. Dittmar, J. H. and Stang, D. B., "Noise Reduction for Model Counterrotation Porpeller at Cruise by Reducing Aft-Propeller Diameter, " NASA TM-88936, May 1987.
3. Dittmar, J. H., Gordon, E. B., and Jeracki, R. J., "The Effect of Front-to-Rear Propeller Spacing on the Interaction Noise at Cruise Conditions of a Model Counterrotation Propeller Having a Reduced Diameter Aft Propeller, " NASA TM-101329, October 1988.
4. Whitfield, C. E., Mani, R., and Gliebe, P. R., "High Speed Turboprop Aeroacoustic Study (Counterrotation) Volume I-Model Development, " NASA CR-185241, July 1990.
5. Woodward, R. P., Loeffler, I. J., and Dittmar, J. H., "Measured Far-Field Flight Noise of a Counterrotation Turboprop at Cruise Conditions, " NASA/TM-101383, January 1989.
6. Elliott, D. M., "Initial Investigation of the Acoustics of a Counter Rotating Open Rotor Model With Historical Baseline Blades in a Low Speed Wind Tunnel. AIAA-2011-2760, " 17th AIAA/CEAS Aeroacoustics Conference, Portland, Oregon, USA, 5-8 June 2011.
7. Stephens, D. B. and Envia, E., "Acoustic Shielding for a Model Scale Counter-rotation Open Rotor. AIAA-2011-2940, " 17th AIAA/CEAS Aeroacoustics Conference, Portland, Oregon, USA, 5-8 June 2011.
8. Berton, J. J., "Empennage Noise Shielding Benefits for an Open Rotor Transport. AIAA-2011-2764, " 17th AIAA/CEAS Aeroacoustics Conference, Portland, Oregon, USA, 5-8 June 2011.
9. Soeder, R. H., "NASA Lewis 8-by 6-Foot Low-Speed Wind Tunnel User Maunal, " NASA/TM 105771, February 1993.
10. Hughes, C. E. and Gazzaniga, J. A., "Summary of Low-Speed Wind Tunnel Results of Several High-Speed Counterrotation Propeller Configurations. AIAA-1988-3149, " AIAA/ASME/SAE/ASEE 24th Joint Propulsion Conference, Boston, Massachusetts, USA, 11-13 July 1988.
11. Woodward, R. P. and Gordon, E. B., "Noise of a Model Counterrotation Propeller With Reduced Aft Rotor Diameter at Simulated Takeoff/Approach Conditions. AIAA-1988-0263, " AIAA 26th Aerospace Sciences Meeting, Reno, Nevada, USA, 11-14 January 1988.