Measurement of trailing edge noise using directional array and coherent output power methods

8th AIAA/CEAS Aeroacoustics Conference and Exhibit

Volumn , Issue , 2002, Pages

  Hutcheson, Florence V ^a   Brooks, Thomas F ^a  

^a NASA LANGLEY RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ARRAY MEASUREMENTS; CROSS-SPECTRAL ANALYSIS; FREQUENCY RANGES; MICROPHONE ARRAYS; NOISE CONTAMINATION; NOISE MEASUREMENTS; PREDICTION METHODS; TRAILING EDGE NOISE;

ACOUSTIC NOISE MEASUREMENT; AEROACOUSTICS; AIRFOILS; MICROPHONES; SPECTRUM ANALYSIS;

ACOUSTIC NOISE;

EID: 84896690446     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (25)

1. Crighton, D. G., "Aeroacoustics of Flight Vehicles: Theory and Practice, Volume 1: Noise Sources", NASA Reference Publication 1258, August 1991.
2. Schlinker, R. H.,"Airfoil Trailing Edge Noise measurements with a directional microphone", AIAA Paper 77-1269, 1977.
3. Yu, J. C. and Joshi, M. C., "On Sound Radiation from the trailing Edge of an Isolated Airfoil in a Uniform Flow", AIAA Paper 79-0603, 1979.
4. Brooks, T. F. and Hodgson, T. H., "Trailing Edge Noise Prediction from Measured Surface Pressures", Journal of Sound and Vibration, Volume 78, Number 1, pp.69-117, 1981.
5. Gershfeld, J., Blake, W. K. and Knisely, C. W., "Trailing Edge Flows and Aerodynamic Sound", AIAA Paper 88-3826.
6. Soderman, P. T. and Noble, S. C., "A Four- Element End-Fire Microphone Array for Acoustic Measurements in Wind Tunnels", NASA Technical Memorandum X-62, 331, January, 1974.
7. Soderman, P. T. and Noble, S. C., "Directional microphone Array for Acoustic Studies of Wind Tunnel Models", AIAA paper 74-640, 8t h AIAA/AT Conference, Bethesda, MD, July 8-10. 1974.
8. Marcolini, M. A. and Brooks, T. F., "Rotor Noise measurement using a Directional Microphone array", Journal of the American Helicopter Society, Vol. 37 (2), pp. 11-22, April, 1992.
9. Bent, P. H., Guo, Y., Horne, C. W. and Watts, M. E., "Airframe Noise Scaling and Source Localization", Noise-Con 96, pp. 145-150, Seattle, Washington, September 29 - October 2, 1996.
10. Meadows, K. R., Brooks, T. F., Humphreys, W. M., Hunter, W. W., and Gerhold, C. H., "Aeroacoustic Measurements of a Wing-Flap Configuration", AIAA Paper 97-1595, 1997.
11. Van der Wal, H. M. and Sijtsma, P., "Flap Noise Measurements in a Closed Wind tunnel with a Phased Array", AIAA Paper 2001-2170, 7th AIAA/CEAS Aeroacousics Conference, Maastricht, The Netherlands, May 28-30, 2001.
12. Brooks, T.F. and Humphreys, Jr., "Flap Edge Aeroacoustic Measurements and Predictions", AIAA Paper No. 2001-1975, 2001.
13. Oerlemans, S., Schepers, J. G., Guidati, G. and Wagner, S., "Experimental Demonstration of Wind Turbine Noise Reduction Through Optimized Airfoil Shape and Trailing-Edge Serrations", European Wind Energy Congress, Copenhagen, Denmark, July 2-6, 2001.
14. Mosher, M., "Phased Arrays for Aeroacoustic Testing: Theoretical Development," AIAA Paper 96-1713, 2nd AIAA/CEAS Aeroacoustics Conference, state College, PA, May 6-8, 1996.
15. Brooks, T.F. and Humphreys, W.M., Jr., "Effect of Directional Array Size on the Measurement of Airframe Noise Components", AIAA Paper No. 99-1958, 1999.
16. Storms, B. L., Ross, J. C., Horne, W. C., Hayes, J. A., Dougherty, R. P., Underbrink, J. R., Scharpf, D. F., and Moriarty, P. J., "An Aeroacoustic Study of an Unswept Wing with a Three-Dimensional High-Lift System," NASA TM-1998-112222, 1998.
17. Humphreys, W. M., Brooks, T. F., Hunter, W. W. and Meadows, K. R., "Design and Use of Microphone Directional Arrays for Aeroacoustics Measurements", AIAA Paper 98-0471, 1998.
18. Brooks, T. F., Pope, D. S., and Marcolini, M. A., "Airfoil Self-Noise and Prediction", NASA Reference Publication 1218, July, 1989.
19. Johnson, D. H. and Dugeon, D. E., Array Signal Processing, Prentice Hall, 1993.
20. Amiet, R. K.," Refraction of Sound by a Shear layer", Journal of Sound and Vibration, Vol. 58 (3), pp. 467-482, Sept. 1978.
21. Mendoza, J. M., Brooks, T. F. and Humpfreys, W. M., "Aeroacoustic Measurements of a High-Lift Wing/Slat Model", AIAA paper 2002-2604, 8th AIAA/CEAS Aeroacoustics Conference, Breckenridge, CO., June 17-19, 2002.
22. Bendat, J. S. and Piersol, A. G., "Engineering Applications of Correlation and Spectral analysis", John Wiley & Sons, 1980.
23. Brooks, T. F. and Marcollini, M. A., "Scaling of Airfoil Self Noise Using Measured Flow Parameters", AIAA Journal, Vol.23, 1985.
24. Brooks, T. F. and Marcollini, M. A., "Airfoil Tip Vortex Formation Noise", AIAA Journal, Vol.24, 1986.
25. Brooks, T. F., Marcollini, M. A. and Pope, D. S., "Airfoil Trailing edge Flow Measurements", AIAA Journal, Vol.24, 1986.