Azimuthal patterns of the radiated sound field from a turbofan model

3rd AIAA/CEAS Aeroacoustics Conference

Volumn , Issue , 1997, Pages

  Thomas, R H ^a   Farassatn, F ^b   Clark, L R ^b   Gerhold, C H ^b  

^a VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY   (United States)

^b NASA LANGLEY RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC FIELDS; ACOUSTICS;

AZIMUTHAL DIRECTION; FAR-FIELD PATTERNS; INFLOW CONTROL DEVICES; POLAR ANGLES; RADIATED MODE; RADIATED SOUND FIELDS; STATOR VANE; TURBOFAN MODEL;

AEROACOUSTICS;

EID: 84977070376     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.1997-1588     Document Type: Conference Paper

References (10)

1. Block, P. J. W., "Installation noise measurements of model SR and CR propellers, " NASA TM 85790, 1984.
2. Tarn, C. K. W., Salikuddin, M., and Hanson, D. B., "Acoustic Interference of Counter-Rotation Propellers, " Journal of Sound and Vibration, Vol. 124, No. 2, 1988, pp. 357-366.
3. Falarski, M. D. and Moore, M. T., "Acoustic Characteristics of Two Hybrid Inlets at Forward Speeds, " Journal of Aircraft, Vol. 17, No. 2, 1980, pp. 106-111.
4. Thomas, R. H., Gerhold, C. H., Farrasat, F., Santa Maria, O. L., Nuckols, W. E., and DeVilbiss, D. W., "Far Field Noise of the 12 Inch Advanced Ducted Propeller Simulator, " AIAA Paper No. 95-0722, 33rd Aerospace Sciences Meeting, Reno, NV, January 1995.
5. Ganz, U., "Multi-Modal Directivities of Fan Tone Noise, " NOISE-CON 96, Bellevue, WA, Oct. 1996.
6. Hodges, R. M., Gerhold, C. H., Balster, D. and Thomas, R. H., "Acoustic Testing of Very High Bypass Ratio Turbofans Using Turbine Powered Scale Models, " AIAA Paper 94-2552, presented at the 18th Aerospace Ground Testing Conference, June 20-23, 1994.
7. Homyak, L., McArdle, J. G., and Heidelberg, L. J., "A Compact Inflow Control Device for Simulating Flight Fan Noise, " AIAA Paper 83-0680, April 1983.
8. Farassat, F., Myers, M. K., "A Study of Wave Propagation in a Duct and Model Radiation, " AIAA Paper 96-1677, presented at the 2nd AIAA/CEAS Aeroacoustics Conference, May 6-8, 1996, State College, PA.
9. Heidelberg, L. J., and Hall, D. G., "Inlet Acoustic Mode Measurements Using a Continuously Rotating Rake, " Journal of Aircraft, Vol. 32, No. 4, July-August, 1995.
10. Joppa, P. D., "Acoustic Mode Measurements in the Inlet of a Turbofan Engine, " Journal of Aircraft, Volume 24, No. 9, Sept. 1987.