Source Effects on Realized Attenuation in Lined Ducts
Abstract
Acoustic attenuation in uniform and non-uniform ducts is investigated with the purpose of developing a flexible method of prediction of performance of acoustic treatment. Optimization procedures of acoustic treatment based on several criteria have been developed. Comparison between results of the methods developed with test data shows no systematic agreement on either optimum impedance or sound attenuation achieved with given impedance. the study has revealed that optimization and realizable attenuation are very sensitive to details of the source. It is concluded that statistical methods are appropriate for the acoustic design procedure. © 2003 by Walter Eversman.
Recommended Citation
G. Zlavog and W. Eversman, "Source Effects on Realized Attenuation in Lined Ducts," 9th AIAA/CEAS Aeroacoustics Conference and Exhibit, American Institute of Aeronautics and Astronautics, Dec 2003.
Department(s)
Mechanical and Aerospace Engineering
International Standard Book Number (ISBN)
978-162410102-1
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Institute of Aeronautics and Astronautics, All rights reserved.
Publication Date
01 Dec 2003
