Transmission loss predictions for dissipative silencers of arbitrary cross section in the presence of mean flow.

@article{Kirby2003TransmissionLP,
  title={Transmission loss predictions for dissipative silencers of arbitrary cross section in the presence of mean flow.},
  author={R. Kirby},
  journal={The Journal of the Acoustical Society of America},
  year={2003},
  volume={114 1},
  pages={200-9}
}
  • R. Kirby
  • Published 2003 in The Journal of the Acoustical Society of America
A numerical technique is developed for the analysis of dissipative silencers of arbitrary, but axially uniform, cross section. Mean gas flow is included in a central airway that is separated from a bulk reacting porous material by a concentric perforate screen. The analysis begins by employing the finite element method to extract the eigenvalues and associated eigenvectors for a silencer of infinite length. Point collocation is then used to match the expanded acoustic pressure and velocity… CONTINUE READING
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