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Rossignol, Karl-Stéphane (2010) Development of an empirical prediction model for flap side-edge noise. 16th AIAA/CEAS Aeroacoustics Conference, 2010-06-07 - 2010-06-09, Stockholm, Sweden.
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Kurzfassung
The ultimate goal of the present study is the elaboration of an empirical noise prediction model applicable in the early development stage of low-noise aircraft. To this end, a series of aeroacoustic tests were performed to investigate the characteristics of flap side-edge noise. Two generic models, an isolated flap and a high-lift wing were selected for the experiments. Measurements of sound pressure levels as well as sound directivity were done using dedicated microphone arrays. Moreover, the acoustic investigation was complemented by flow measurements done with a 7-hole probe. Further analysis of the data revealed the effectiveness of the flap tip cross-flow velocity in scaling noise spectra. The main characteristics of the noise directivity were also determined. These results allow the formulation of a preliminary empirical prediction scheme.
| elib-URL des Eintrags: | https://elib.dlr.de/68187/ | ||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||
| Titel: | Development of an empirical prediction model for flap side-edge noise | ||||||||
| Autoren: |
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| Datum: | 7 Juni 2010 | ||||||||
| Referierte Publikation: | Nein | ||||||||
| Open Access: | Nein | ||||||||
| Gold Open Access: | Nein | ||||||||
| In SCOPUS: | Nein | ||||||||
| In ISI Web of Science: | Nein | ||||||||
| Status: | veröffentlicht | ||||||||
| Stichwörter: | Aeroacoustic, Airframe noise, Flap side-edge noise, Microphone array, Noise prediction | ||||||||
| Veranstaltungstitel: | 16th AIAA/CEAS Aeroacoustics Conference | ||||||||
| Veranstaltungsort: | Stockholm, Sweden | ||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||
| Veranstaltungsbeginn: | 7 Juni 2010 | ||||||||
| Veranstaltungsende: | 9 Juni 2010 | ||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||
| HGF - Programm: | Luftfahrt | ||||||||
| HGF - Programmthema: | L VU - Luftverkehr und Umwelt (alt) | ||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||
| DLR - Forschungsgebiet: | L VU - Luftverkehr und Umwelt | ||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Leiser Luftverkehr (alt) | ||||||||
| Standort: | Braunschweig | ||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Technische Akustik | ||||||||
| Hinterlegt von: | Rossignol, Karl-Stephane | ||||||||
| Hinterlegt am: | 18 Jan 2011 10:12 | ||||||||
| Letzte Änderung: | 24 Apr 2024 19:33 |
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- Development of an empirical prediction model for flap side-edge noise. (deposited 18 Jan 2011 10:12) [Gegenwärtig angezeigt]
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