Modelling of sound propagation in a non-uniform lined duct using a Multi-Modal Propagation Method

@article{Bi2006ModellingOS,
  title={Modelling of sound propagation in a non-uniform lined duct using a Multi-Modal Propagation Method},
  author={W. Bi and V. Pagneux and D. Lafarge and Y. Aur{\'e}gan},
  journal={Journal of Sound and Vibration},
  year={2006},
  volume={289},
  pages={1091-1111}
}
Liner non-uniformities, such as distributed impedances, may have a direct influence on the performance of turbofan engine liners. A relevant problem to study these effects is that of sound propagation in a hard-walled duct of circular cross-section, fitted with a region of non-uniform liner. Given the complex modal input amplitudes at one end of the hard-walled duct, the problem is to compute the complex modal output amplitudes at the other end. In the present paper, a Multi-Modal Propagation… Expand
An improved multimodal method for sound propagation in nonuniform lined ducts.
MODE PROPAGATION AND ATTENUATION IN LINED DUCTS
Nonlinear sound propagation in two-dimensional curved ducts: a multimodal approach
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  • V. Pagneux, A. Maurel
  • Mathematics
  • Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
  • 2002
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