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A study of sound transmission in curved duct bends by the Galerkin methodA computational procedure based on the Galerkin method is developed to study the sound transmission and reflection characteristics of circularly curved bends of rectangular ducts. This procedure is adaptable to routine computer calculation. An important component of the computer program consists of a QR iterative algorithm which solves the matrix eigenvalue problem generated by the Galerkin method. The present procedure produced very satisfactory convergent results when applied even to cases where the incident wave has high frequency and high wave mode numbers. Some properties of the Galerkin solution are investigated. Its relationship to the classical solution by the method of separation of variables is discussed.
Document ID
19760042329
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tam, C. K. W.
(Florida State University Tallahassee, Fla., United States)
Date Acquired
August 8, 2013
Publication Date
March 8, 1976
Publication Information
Publication: Journal of Sound and Vibration
Volume: 45
Subject Category
Acoustics
Accession Number
76A25295
Funding Number(s)
CONTRACT_GRANT: NSG-1021
CONTRACT_GRANT: NSF GK-35790
Distribution Limits
Public
Copyright
Other

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