Numerical investigation of zeros of some dispersion relations appearing in sound attenuation problems in a circular lined duct

In this paper the zeros of some dispersion relations apperaring in sound attenuation problems in circular lined ducts, carrying a gas flow, are investigated numerically. To find the values of frequencies for which the dispersion relations vanish is not easy at all. That is beacause these relations c...

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Bibliographic Details
Main Authors: Loredana TANASIE, Agneta M. BALINT
Format: Article
Language:English
Published: National Institute for Aerospace Research “Elie Carafoli” - INCAS 2012-12-01
Series:INCAS Bulletin
Subjects:
Online Access:http://bulletin.incas.ro/files/balint_a__tanasie_l__v4_iss_4_full.pdf