Hybrid analytical/numerical method for mode scattering in azimuthally non-uniform ducts

Journal of Sound and Vibration

Volumn 292, Issue 3-5, 2006, Pages 583-594

  Wright, M C M ^a  

^a UNIVERSITY OF SOUTHAMPTON   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ATTENUATION; FINITE ELEMENT METHOD; SCATTERING;

HARD DUCTS; MODE SCATTERING; SPLICED LINERS;

DUCTS;

EID: 33644585598     PISSN: 0022460X     EISSN: 10958568     Source Type: Journal    
DOI: 10.1016/j.jsv.2005.08.011     Document Type: Article

References (16)

1. E. Rademaker, P. Sijtsma, B.J. Tester, Mode detection with an optimised array in a model turbofan engine intake at varying shaft speeds, in: Seventh AIAA/CEAS Aeroacoustics Conference, No. AIAA-2001-2181, 2001.
2. D.L. Lansing, and W.E. Zorumski Effects of wall admittance changes on duct transmission and radiation of sound Journal of Sound and Vibration 27 1 1973 85 100
3. W. Watson, A finite element simulation of sound attenuation in a finite duct with a peripherally variable liner, Technical Report TM-74080, NASA, 1977.
4. R.J. Astley, N. Walkington, W. Eversman, Transmission in flow ducts with peripherally varying liner, in: AIAA Conference Paper, No. AIAA-80-1015, 1980.
5. B. Regan, and J. Eaton Modelling the influence of acoustic liner nonuniformities on duct modes Journal of Sound and Vibration 219 5 1999 859 879
6. W. Watson, Noise suppression characteristics of peripherally segmented duct liners, Technical Report TP-1904, NASA, 1981.
7. C.R. Fuller Propagation and radiation of sound from flanged circular ducts with circumferentially varying wall admittances, I: semi-infinite ducts Journal of Sound and Vibration 93 3 1984 321 340
8. C.R. Fuller Propagation and radiation of sound from flanged circular ducts with circumferentially varying wall admittances, II: finite ducts with sources Journal of Sound and Vibration 93 3 1984 341 351
9. B.J. Tester, N. Baker, A. Kempton, M.C.M. Wright, Validation of an analytical model for scattering by intake liner splices, in: 10th AIAA/CEAS Aeroacoustics Conference, No. AIAA-2004-2906, 2004.
10. A. Cummings High frequency ray acoustics models for duct silencers Journal of Sound and Vibration 221 4 1999 681 708
11. S.W. Rienstra A classification of duct modes based on surface waves Wave Motion 37 2 2003 119 135
12. The Mathworks, Partial Differential Equation Toolbox for Use with MATLAB, The Mathworks, Natick, MA, 1996.
13. Free Field Technologies, Actran 2003 Users' Guide, Free Field Technologies, 2003 http://www.fft.be.
14. A. McAlpine, M.C.M. Wright, S. Thezelais, H. Batard, Finite/boundary element assessment of a turbofan spliced intake liner at supersonic operating conditions, in: Ninth AIAA/CEAS Aeroacoustics Conference, No. AIAA-2003-3305, 2003.
15. A. McAlpine, M.C.M. Wright, Acoustic scattering by a spliced turbofan inlet duct liner at supersonic fan speeds, Journal of Sound and Vibration, 2005, in press.
16. U. Ingard Influence of fluid motion past a plane boundary on sound reflection, absorption and transmission Journal of the Acoustical Society of America 31 7 1959 1035 1036