Schmidt, Kersten and Semin, Adrien and Thöns-Zueva, Anastasia and Bake, Friedrich (2018):
On impedance conditions for circular multiperforated acoustic liners.
In: J. Math. Industry, 8 (1), p. 15. Springer, ISSN 2190-5983,
DOI: 10.1186/s13362-018-0057-0,
[Article]
Abstract
The acoustic damping in gas turbines and aero-engines relies to a great extent on acoustic liners that consists of a cavity and a perforated face sheet. The prediction of the impedance of the liners by direct numerical simulation is nowadays not feasible due to the hundreds to thousands repetitions of tiny holes. We introduce a procedure to numerically obtain the Rayleigh conductivity for acoustic liners for viscous gases at rest, and with it define the acoustic impedance of the perforated sheet.
Item Type: | Article | ||||
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Erschienen: | 2018 | ||||
Creators: | Schmidt, Kersten and Semin, Adrien and Thöns-Zueva, Anastasia and Bake, Friedrich | ||||
Title: | On impedance conditions for circular multiperforated acoustic liners | ||||
Language: | English | ||||
Abstract: | The acoustic damping in gas turbines and aero-engines relies to a great extent on acoustic liners that consists of a cavity and a perforated face sheet. The prediction of the impedance of the liners by direct numerical simulation is nowadays not feasible due to the hundreds to thousands repetitions of tiny holes. We introduce a procedure to numerically obtain the Rayleigh conductivity for acoustic liners for viscous gases at rest, and with it define the acoustic impedance of the perforated sheet. |
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Journal or Publication Title: | J. Math. Industry | ||||
Journal volume: | 8 | ||||
Number: | 1 | ||||
Publisher: | Springer | ||||
Divisions: | 04 Department of Mathematics 04 Department of Mathematics > Numerical Analysis and Scientific Computing |
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Date Deposited: | 25 Dec 2018 15:50 | ||||
DOI: | 10.1186/s13362-018-0057-0 | ||||
Official URL: | https://doi.org/10.1186/s13362-018-0057-0 | ||||
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