Infinite Waveguide Termination by Series Solution in Finite Element Analysis

Macey P. Infinite Waveguide Termination by Series Solution in Finite Element Analysis. In: AES Convention 147. Audio Engineering Society; 2019.pp. 10229:1-. Available from: https://aes.org/publications/elibrary-page/?id=20602

@inproceedings{Macey2019_20602,
  author = {Macey, Patrick},
  title = {{Infinite Waveguide Termination by Series Solution in Finite Element Analysis}},
  booktitle = {AES Convention 147},
  pages = {10229:1-},
  year = {2019},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=20602}
}

TY  - CPAPER
TI  - Infinite Waveguide Termination by Series Solution in Finite Element Analysis
AU  - Macey, Patrick
T2  - AES Convention 147
SP  - 1
M1  - Paper 10229
PY  - 2019
DA  - 2019/10/06
UR  - https://aes.org/publications/elibrary-page/?id=20602
PB  - Audio Engineering Society
LA  - en
AB  - The acoustics of an audio system may comprise of several components, e.g., a compression driver producing plane waves, a transition connecting to the throat of a horn, and a cylindrical horn which is baffled at the mouth. While finite elements/boundary elements can model the entire system, it is advantageous from the design perspective to consider simplified systems. A compression driver might be used in many situations and should be designed radiating plane waves, without cross modes, into a semi-infinite tube. The pressure field in the tube can be represented by a series that is coupled to the finite element mesh by a DtN approach. The method is generalized to cater for ducts of arbitrary cross section and infinite cylindrical horns.
ER  -