Schmidt, Kersten ; Semin, Adrien ; Thöns-Zueva, Anastasia ; Bake, Friedrich (2018)
On impedance conditions for circular multiperforated acoustic liners.
In: Journal of Mathematics in Industry, 8 (1)
doi: 10.1186/s13362-018-0057-0
Artikel, Bibliographie
Kurzbeschreibung (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.
Typ des Eintrags: | Artikel | ||||
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Erschienen: | 2018 | ||||
Autor(en): | Schmidt, Kersten ; Semin, Adrien ; Thöns-Zueva, Anastasia ; Bake, Friedrich | ||||
Art des Eintrags: | Bibliographie | ||||
Titel: | On impedance conditions for circular multiperforated acoustic liners | ||||
Sprache: | Englisch | ||||
Publikationsjahr: | 23 Dezember 2018 | ||||
Verlag: | Springer | ||||
Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Mathematics in Industry | ||||
Jahrgang/Volume einer Zeitschrift: | 8 | ||||
(Heft-)Nummer: | 1 | ||||
DOI: | 10.1186/s13362-018-0057-0 | ||||
Kurzbeschreibung (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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Zusätzliche Informationen: | Erstveröffentlichung |
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Fachbereich(e)/-gebiet(e): | 04 Fachbereich Mathematik 04 Fachbereich Mathematik > Numerik und wissenschaftliches Rechnen |
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Hinterlegungsdatum: | 25 Dez 2018 15:50 | ||||
Letzte Änderung: | 18 Aug 2022 09:48 | ||||
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