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Study of a folded resonator including the effects of higher order modes
KTH, Superseded Departments, Aeronautical and Vehicle Engineering.
KTH, Superseded Departments, Aeronautical and Vehicle Engineering.ORCID iD: 0000-0001-7898-8643
2004 (English)In: Journal of Sound and Vibration, ISSN 0022-460X, E-ISSN 1095-8568, Vol. 273, no 4-5, 777-792 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a derivation of the 2-port matrix for a folded quarter-wave side-branch resonator including higher order modes but neglecting flow interaction effects. The model is restricted to coaxial geometries and two-folds. The derivation is based on the mode matching technique and is verified by measurements done on prototypes. A notable result from these experiments is the effects of a slit-like leakage close to a rigid wall. A parametrical study finally investigates the influence of various lengths and area ratios of the resonator resulting in a set of design rules.

Place, publisher, year, edition, pages
Elsevier, 2004. Vol. 273, no 4-5, 777-792 p.
Keyword [en]
scattering-matrix, duct
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:kth:diva-23452DOI: 10.1016/j.jsv.2003.05.024ISI: 000221684400005ScopusID: 2-s2.0-2542548053OAI: diva2:342150

QC 20100525. QC 20111017. QC 20160129

Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2016-01-29Bibliographically approved

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