A detailed tutorial for evaluating in-duct net acoustic power transmission in a circular duct with an attached cylindrical Helmholtz resonator using transfer matrix method
Date
2008
Authors
Singh, S.
Hansen, C.
Howard, C.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Acoustics 2008: acoustics and sustainability : proceeding of the Annual Conference of the Australian Acoustical Society, 24-26 November 2008, Geelong, Victoria, Australia / Terrance Mc Minn (ed.): 1 p.
Statement of Responsibility
Sarabjeet Singh, Colin H. Hansen and Carl Q. Howard
Conference Name
Australian Acoustical Society. Conference (2008 : Geelong, Vic.)
Abstract
The transfer matrix method has been extensively explored by many researchers for analysing acoustic duct systems. However, there does not exist a comprehensive source that elaborates the use of transfer matrix method for evaluating the performance of acoustic filters. The current approach describes a detailed step-by-step method for evaluating in-duct net acoustic power transmission for a harmonic plane wave travelling in a circular duct with an attached cylindrical Helmholtz resonator using the transfer matrix method. The net acoustic power transmission is evaluated using two different methods: (1) the product of acoustic pressure and acoustic volume velocity at the duct exit, and (2) estimates of the in-duct sound field using the two-microphone technique.