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On the attached length of orifices

  • Classical Problems of Linear Acoustics and Wave Theory
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Abstract

The attached length of orifices in reactive mufflers has been estimated based on numerical calculations by the finite-element method. The numerical results for a diaphragm in a duct are compared with the theoretical data obtained by Rayleigh, Fock, Karal, and Ingard. The dependence of the attached length on the diaphragm thickness is given. The results obtained are generalized for the case in which the orifice is a Helmholtz resonator neck. The effect of the resonator length on the attached length of the neck is analyzed.

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Authors and Affiliations

  1. Bauman State Technical University, ul. 2-ya Baumanskaya 5, Moscow, 105005, Russia

    A. I. Komkin & S. I. Yudin

  2. Andreev Institute of Acoustics, Russian Academy of Sciences, ul. Shvernika 4, Moscow, 117036, Russia

    M. A. Mironov

Authors
  1. A. I. Komkin
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  2. M. A. Mironov
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  3. S. I. Yudin
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Correspondence to A. I. Komkin.

Additional information

Original Russian Text © A.I. Komkin, M.A. Mironov, S.I. Yudin, 2012, published in Akusticheskii Zhurnal, 2012, Vol. 58, No. 6, pp. 677–682.

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Komkin, A.I., Mironov, M.A. & Yudin, S.I. On the attached length of orifices. Acoust. Phys. 58, 628–632 (2012). https://doi.org/10.1134/S1063771012050090

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  • DOI: https://doi.org/10.1134/S1063771012050090

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