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Appel, Christina und Rossignol, Karl-Stéphane und Klabes, Alexander und Neifeld, Andrej und Herr, Michaela und Ewert, Roland (2014) RANS/CAA based Prediction of Jet Mixing Noise in Cruise Flight. 20th AIAA/CEAS Aeroacoustics Conference, 2014-06-16 - 2014-06-20, Atlanta, GA, USA.
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Kurzfassung
Besides turbulent boundary layer induced excitation noise, jet noise is the second most important aeroacoustic source for aircraft cabin noise. A goal within the DLR project ECCO (Enhanced Cabin Comfort Computations) was to improve current cabin noise pre- diction approaches. Within the framework of the project ECCO RANS (Reynolds Averaged Navier Stokes) and CAA (Computational Aero Acoustics) computations for jet noise at cruise conditions have been carried out. Especially at high cruise Mach numbers forward ight e�ects have a clear impact on the radiated jet noise. These e�ects are well known from experiments and discussed detailed in the literature. The outcomes of these studies, e.g. scaling laws, will be used to verify the simulated jet noise spectra. Furthermore in- ight surface pressure spectra, which have been recorded during ight tests in the framework of the German national (LuFo IV) project SIMKAB (Simpli�ed Cabin), are discussed here and compared with the simulations. In order to extend the validation data base to a more generic case a single stream jet (SSJ) with di�erent jet and co ow velocities numerically and experimentally investigated.
| elib-URL des Eintrags: | https://elib.dlr.de/91191/ | ||||||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
| Titel: | RANS/CAA based Prediction of Jet Mixing Noise in Cruise Flight | ||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | Juni 2014 | ||||||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||
| Stichwörter: | CAA, Jet Noise Prediction | ||||||||||||||||||||||||||||
| Veranstaltungstitel: | 20th AIAA/CEAS Aeroacoustics Conference | ||||||||||||||||||||||||||||
| Veranstaltungsort: | Atlanta, GA, USA | ||||||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||
| Veranstaltungsbeginn: | 16 Juni 2014 | ||||||||||||||||||||||||||||
| Veranstaltungsende: | 20 Juni 2014 | ||||||||||||||||||||||||||||
| Veranstalter : | AIAA/CEAS | ||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||||||
| HGF - Programmthema: | Flugzeuge | ||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | L AR - Aircraft Research | ||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Simulation und Validierung (alt) | ||||||||||||||||||||||||||||
| Standort: | Braunschweig | ||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Technische Akustik | ||||||||||||||||||||||||||||
| Hinterlegt von: | Appel, Christina | ||||||||||||||||||||||||||||
| Hinterlegt am: | 20 Okt 2014 13:09 | ||||||||||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 19:57 |
Verfügbare Versionen dieses Eintrags
- RANS/CAA based Prediction of Jet Mixing Noise in Cruise Flight. (deposited 20 Okt 2014 13:09) [Gegenwärtig angezeigt]
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