Inlet mode measurements with an inflow control device microphone array

8th AIAA/CEAS Aeroacoustics Conference and Exhibit

Volumn , Issue , 2002, Pages

  Lan, Justin H ^a   Premo, John W ^a   Sutliff, Daniel L ^b  

^a BOEING COMPANY   (United States)

^b Sest Inc   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC PRESSURES; CIRCUMFERENTIAL MODES; INFLOW CONTROL DEVICES; MICROPHONE ARRAYS; PARABOLIC APPROXIMATION; PROPAGATING MODE; SIGNAL TO NOISE; STEERING VECTOR;

AEROACOUSTICS; CONTROL; ERRORS; MICROPHONES; NASA; SIGNAL TO NOISE RATIO; VECTORS;

ACOUSTIC NOISE;

EID: 84896875791     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (8)

1. Joppa, P.D., "Duct Mode Measurement of Fan Broadband Noise", Proceedings of NOISE-CON 96 Vol 1, Seattle, WA, Sept. 29-Oct. 2, 1996, pp. 127-132.
2. Rademaker, E.R., Sijtsma, P., Tester, B.J., "Mode Detection with an Optimised Array in a Model Turbofan Engine Intake at Varying Shaft Speeds", AIAA 2001-2181
3. Sutliff, D.L., Nallasamy, M., Heidelberg, L.J., Elliott, D.M., "Baseline Acoustic Levels of the NASA Active Noise Control Fan Rig", NASA TM 107214/ AIAA 96-1745, May 1996.
4. Farassat, F., Nark, D.M., Thomas, R.H., "The Detection of Radiated Modes From Ducted Fan Engines", AIAA 2001-2138.
5. Dougherty, R.P., "Phased Array Beamforming for Aeroacoustics", AIAA Professional Development Short Course, Bellevue, WA, May 8-9, 1999.
6. Lan, J.H., "Turbofan Duct Propagation Model", NASA CR-2001-211245.
7. Heidelberg, L.J., Hall, D.G., Bridges, J.E., Nallasamy, M., "A Unique Ducted Fan Test Bed for Active Noise Control and Aeroacoustics Research", NASA TM 107213/AIAA2 96-1740, May 1996.
8. Tyler, J.M., and Sofrin, T.G., "Axial Flow Compressor Noise Studies," SAE Transactions, Vol. 70, 1962, pp. 309-332.