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Kröber, Stefan und Hellmold, Marius und Koop, Lars (2013) Experimental Investigation of Spectral Broadening of Sound Waves by Wind Tunnel Shear Layers. American Institute of Aeronautics and Astronautics. 19th AIAA/CEAS Aeroacoustics Conference (34th AIAA Aeroacoustics Conference), 27. - 29. May 2013, Berlin, Germany. doi: 10.2514/6.2013-2255.
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Offizielle URL: http://arc.aiaa.org | DOI: 10.2514/6.2013-2255
Kurzfassung
A detailed experimental investigation of the phenomenon of spectral broadening of monochromatic sound waves by wind tunnel shear layers is presented. The determination of the broadening characteristics as a function of aerodynamic (flow velocity and shear layer characteristics) and acoustic (source and receiver positions, tone frequency) properties is performed in a wind tunnel using two different sound source concepts. The performance of each sound source concept and their equivalence for examining experimentally the effect of spectral broadening is evaluated. The magnitude of the tone broadening by the shear layer was quantified as function of the dimensionless scattering parameter. Furthermore a simple approach for the identification of broadened spectral components of tone spectra is presented and its possibilities and limitations are evaluated in detail.
| elib-URL des Eintrags: | https://elib.dlr.de/82451/ | ||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||||||
| Zusätzliche Informationen: | DOI: 10.2514/6.2013-2255 | ||||||||||||||||
| Titel: | Experimental Investigation of Spectral Broadening of Sound Waves by Wind Tunnel Shear Layers | ||||||||||||||||
| Autoren: |
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| Datum: | 2013 | ||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||
| DOI: | 10.2514/6.2013-2255 | ||||||||||||||||
| Seitenbereich: | Seiten 1-17 | ||||||||||||||||
| Verlag: | American Institute of Aeronautics and Astronautics | ||||||||||||||||
| Name der Reihe: | Conference Proceedings online | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | shear layer, spectral broadening of sound waves, aeroacoustic testing, open test section | ||||||||||||||||
| Veranstaltungstitel: | 19th AIAA/CEAS Aeroacoustics Conference (34th AIAA Aeroacoustics Conference) | ||||||||||||||||
| Veranstaltungsort: | Berlin, Germany | ||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
| Veranstaltungsdatum: | 27. - 29. May 2013 | ||||||||||||||||
| Veranstalter : | The American Institute of Aeronautics and Astronautics (AIAA) | ||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||
| HGF - Programmthema: | Starrflügler (alt) | ||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
| DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Simulation & Validierung (alt) | ||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren | ||||||||||||||||
| Hinterlegt von: | Micknaus, Ilka | ||||||||||||||||
| Hinterlegt am: | 22 Aug 2013 13:37 | ||||||||||||||||
| Letzte Änderung: | 10 Jul 2023 15:01 |
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