Characteristics of residual mixing noise from internal fan/core mixers

35th Aerospace Sciences Meeting and Exhibit

Volumn , Issue , 1997, Pages

  Krejsa, Eugene A ^a   Saiyed, Naseem H ^a  

^a NASA GLENN RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AEROSPACE ENGINEERING; MIXERS (MACHINERY); MIXING;

ACOUSTIC DATA; EMPIRICAL CORRELATIONS; JET MIXING NOISE; LOW-FREQUENCY; MIXED LEVELS; NOISE SIGNATURE; NOISE SPECTRA; SINGLE ROUND NOZZLES;

NOZZLES;

EID: 84983103105     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (9)

1. Castner, R.S., "The Nozzle Acoustic Test Rig: An Acoustic and Aerodynamic Free-Jet Facility," NASA TM-106495, June 1994.
2. Cooper, Beth A., "A Large Hemi-Anechoic Enclosure for Community-Compatible Aeroacoustic Testing of Aircraft Propulsion Systems," NASA TM-106015, April 1993.
3. Goldstein, Marvin E. and Howes, Walton L., "New Aspects of Subsonic Aerodynamic Noise Theory," NASA TN D-7158, Feb. 1973.
4. Montouri, P. and Saiyed, N., "Improved Internal Exhaust Gas Mixers," Inter-Noise "95, Newport Beach, CA. July, 1995.
5. Podboy, G.C., Bridges, J.E., Saiyed, N.H., and Krupar, M.J., "Laser Doppler Velocimetry for a Subsonic Jet Mixer Nozzle at the NASA Lewis Aero/Acoustic Propulsion Lab," NASA TM-106984, AIAA-95-2787, July, 1995.
6. Saiyed, Naseem H., Bridges, James E., and Krejsa, Eugene A., "Core and Fan Streams’ Mixing Noise Outside the Nozzle for Subsonic Jet Engines with Internal Mixers," NASA TM-107237, AIAA-96-1667, May, 1996.
7. Stone, James, R. and Montegani, F.J., "An Improved Prediction Method for the Noise Generated in Flight by Circular Jets," NASA TM-81470, 1980.
8. Stone, James R., Groesbeck, Donald E., and Zola, Charles L. "An Improved Prediction Method for Noise Generated by Conventional Profile Coaxial Jets," NASA TM-82712, AIAA-81-1991, 1981.
9. Zysman, Steven H., Chiappett, Louis M., Saiyed, Naseem, H., and Podboy, Gary G., "Flowfield Measurements and Analysis of a 1/7-Scale Mixed Flow Exhaust System Model," AIAA 95-2744, 1995.