Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/2770
Title: Structural/acoustic interaction in air-conditioning ducts in the presence of mean flow
Authors: Kirby, R
Cumming, A
Keywords: dissipative silencer;noise breakout;structural/acoustic interaction;mean flow
Issue Date: 1998
Publisher: Katholieke Universiteit Leuven
Citation: Proceedings of ISMA23, International Conference on Noise and Vibration Engineering. Katholieke Universiteit Leuven, Belgium, 16-18 September 1998. vol. 2, pp.677 -684.
Abstract: The finite element method is applied to the modelling of noise breakout from air-conditioning ducts which are rectangular in cross-section and lined with a bulk reacting sound absorbent. Mean flow in the central airway is also included in the model. An eigenvalue formulation is employed to couple the acoustic pressure field inside the duct to the displacement of the duct walls. Numerical predictions for the axial wavenumbers of the first “structural” and “acoustic” modes are examined both with and without mean flow.
URI: http://bura.brunel.ac.uk/handle/2438/2770
ISBN: 90-73802-64-4
Appears in Collections:Mechanical and Aerospace Engineering
Advanced Manufacturing and Enterprise Engineering (AMEE)
Dept of Mechanical and Aerospace Engineering Research Papers



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