Study of wave propagation in a duct and mode radiation

2nd AIAA/CEAS Aeroacoustics Conference

Volumn , Issue , 1996, Pages

  Farassat, F ^a   Myers, M K ^b  

^a NASA LANGLEY RESEARCH CENTER   (United States)

^b GEORGE WASHINGTON UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTICS; AEROACOUSTICS; AERODYNAMICS; ENGINES; MACH NUMBER; MICROPHONES; WAVE PROPAGATION;

CIRCULAR ARRAYS; CIRCULAR MICROPHONE ARRAYS; DOWNSTREAM WAVES; DUCT PROPAGATION; ENERGY PROPAGATION; GRAPHICAL APPROACH; MEASUREMENT TECHNIQUES; MICROPHONE ARRAYS;

DUCTS;

EID: 33646731892     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.1996-1677     Document Type: Conference Paper

References (7)

1. Tyler, J. M. and Sofrin, T. G., “Axial Flow Compressor Noise Studies,” SAE Transactions, Vol. 70, 1962, pp. 309-332.
2. Nayfeh, A. H., Kaiser, J. E. and Shaker, B. S., “A Wave-Envelope Analysis of Sound Propagation in Non-uniform Circular Ducts With Compressible Mean Flows,” NASA CR-3109, March, 1979.
3. Uenishi, K. and Myers, M. K., “Two-Dimensional Acoustic Field in a Nonuniform Duct Carrying Compressible Flow,” AIAA Journal, Vol. 22, No. 9, September, 1984, pp. 1242-1248.
4. Heidelberg, L. J. and Hall, D. G., “Inlet Acoustic Mode Measurements Using a Continuously Rotating Rake,” J Aircraft, Vol. 32, No. 4, July-August, 1995, pp. 761-767.
5. Myers, M. K., “An Exact Energy Corollary for Homentropic Flow,” J. Sound and Vibration, Vol. 109, No. 2, 1986, pp. 277-284.
6. Rice, E. J., Heidmann, M. F. and Sofrin, T. G., “Modal Propagation Angles in a Cylindrical Duct with Flow and Their Relation to Sound Radiation,” AIAA Paper 79-0183, January, 1979.
7. Tester, B. J., Cargill, A. and Barry, B., “Fan Noise Duct-Mode Detection in the Far-Field: Simulation, Measurement and Analysis,” AIAA Paper 79-0580, March, 1997.