A computational mode matching approach for propagation in three-dimensional ducts with flow

Collection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference

Volumn 3, Issue , 2006, Pages 1652-1674

  Astley, R J ^a,c   Hii, V ^a,b,c   Gabard, G ^a,c  

^a UNIVERSITY OF SOUTHAMPTON   (United Kingdom)

^b Hepworth Acoustics Ltd   (United Kingdom)

^c AIAA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC NOISE; ATTENUATION; COMPUTATIONAL METHODS; FINITE ELEMENT METHOD; NUMERICAL METHODS; TURBOFAN ENGINES;

DUCT ACOUSTICS; LINER DISCONTINUITY; SOUND ATTENUATION; TURBOFAN INLETS;

ACOUSTIC WAVE PROPAGATION;

EID: 33845629793     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.2006-2528     Document Type: Conference Paper

References (20)

1. Regan, B. and Eaton, J., "Modelling the influence of acoustic liner non-uniformities on duct modes," Journal of Sound and Vibration, Vol. 219, No. 5, 1999, pp. 859-879.
2. Fuller, C., "Propagation and radiation of sound from flanged circular ducts with circumferentially varying wall admittances," Journal of Sound and Vibration, Vol. 93, No. 3, 1984, pp. 321-351.
3. Fuller, C. and Silcox, R., "Experiments on sound radiation from a duct with a circumferentially varying liner," AIAA Journal, Vol. 22, No. 6, 1984, pp. 781-785.
4. Bi, W., Pagneux, V., and Auregan, Y., "Modelling of sound propagation in non-uniform lined duct using a Multi-Modal Propagation Method," Journal of Sound and Vibration, Vol. 289, 2006, pp. 1091-1111.
5. Rienstra, S., "A classification of duct modes based on surface waves," Wave Motion, Vol. 37(2), 2003, pp. 119-135.
6. Astley, R. and Eversman, W., "A finite element formulation of the eigenvalue problem in lined ducts with flow," Journal of Sound and Vibration, Vol. 65, No. 1, 1979, pp. 61-74.
7. Astley, R., "The finite element duct eigenvalue problem: An improved formulation with hermitian elements and no-flow condensation," Journal of Sound and Vibration, Vol. 69, No. 1, 1980, pp. 13-25.
8. Lehoucq, R., Sorensen, D., and Yang, C., ARPACK Users' Guide: Solution of Large Scale Eigenvalue Problems with Implicitly Restarted Arnoldi Methods, http://www.caam.rice.edu/software/ARPACK/index.html.
9. Eversman, W., "Acoustic power in lined ducts," 10th AIAA/CEAS Aeroacoustics conference, 2004, AIAA paper 2004-2904.
10. Cummings, A., "High frequency ray acoustics models for duct silencers," Journal of Sound and Vibration, Vol. 221, No. 4, 1999, pp. 681-708.
11. Free Field Technologies, Actran 2004 user's manual, Free Field Technologies, Louvain-la-Neuve, Belgium, 2004.
12. Munt, R., "The interaction of sound with a subsonic jet issuing from a semi-infinite cylindrical pipe," Journal of Fluid Mechanics, Vol. 83, No. 4, 1977, pp. 609-640.
13. Munt, R., "Acoustic transmission properties of a jet pipe with subsonic jet flow: I. the cold jet reflection coefficient," Journal of Sound and Vibration, Vol. 142, No. 3, 1990, pp. 413-436.
14. Rienstra, S., "Acoustic radiation from a semi-infinite annular duct in a uniform subsonic mean flow," Journal of Sound and Vibration, Vol. 94, No. 2, 1984, pp. 267-288.
15. Gabard, G. and Astley, R., "Theoretical model for sound radiation from annular jet pipes: far- and near-field solutions," Journal of Fluid Mechanics, Vol. 549, 2006, pp. 315-341.
16. Tyler, J. and Sofrin, T., "Axial flow compressor noise studies," Society of Automotive Engineers Transactions, Vol. 70, 1962, pp. 309-332.
17. Joseph, P. and Morfey, C., "Multimode radiation from an unflanged, semi-infinite circular duct," Journal of the Acoustical Society of America, Vol. 105, No. 5, 1999, pp. 2590-2600.
18. Rienstra, S., "Sound diffraction at a trailing edge," Journal of Fluid Mechanics, Vol. 108, 1981, pp. 443-460.
19. Agarwal, A. and Morris, P., "Calculation of sound propagation in nonuniform flows: suppression of the instability waves," AIAA Journal, Vol. 42, No. 1, 2004, pp. 80-88.
20. Goldstein, M. and Leib, S., "The role of instability waves in predicting jet noise," Journal of Fluid Mechanics, Vol. 525, 2005, pp. 37-72.