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- Title
Complex resonances in acoustic waveguides.
- Authors
ASLANYAN, A.; PARNOVSKI, L.; VASSILIEV, D.
- Abstract
The article presents a study which examined a two-dimensional infinitely long acoustic waveguide formed by two parallel lines with an arbitrarily shaped obstacle that has been shifted with respect to the centreline. Researchers investigated how an eigenvalue becomes a complex resonance moving from the real axis into the upper half-plane when the obstacle is shifted from its original position, before predictions about the shift of the eigenvalue were compared with numerical computations.
- Subjects
WAVEGUIDES; EIGENVALUES; NUMERICAL analysis; ELECTRIC waves; MATRICES (Mathematics)
- Publication
Quarterly Journal of Mechanics & Applied Mathematics, 2000, Vol 53, Issue 3, p429
- ISSN
0033-5614
- Publication type
Article
- DOI
10.1093/qjmam/53.3.429