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Aerodynamic and Aeroacoustic Analysis of Installed Pusher-Propeller Aircraft Configurations

Yin, Jianping und Stürmer, Arne und Aversano, Marco (2012) Aerodynamic and Aeroacoustic Analysis of Installed Pusher-Propeller Aircraft Configurations. Journal of Aircraft, 49 (5), Seiten 1423-1433. The American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.C031704. ISSN 0021-8669.

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Kurzfassung

In this paper, the aeroacoustic phenomena characteristic of a pusher-propeller configuration and their aerodynamic causes are discussed and analyzed. The work was done in the framework of the European-funded project CESAR(for ‘cost effective small aircraft’). The configuration under study is based on an industrially relevant business aircraft design with a wing-mounted pusher propeller, which features a close coupling of the turboshaft engine exhaust nozzles and a five bladed propeller. An established numerical analysis approach is applied in this study, which couples a high-fidelity unsteady aerodynamic simulation using theDLRunstructured finite volume flow solver (TAU) code with the DLR Ffowcs-Williams–Hawkings code APSIM for a subsequent aeroacoustic evaluation. A detailed analysis of the contributions of various components of the installation as well as flight-condition specific parameters toward the overall noise generation by the propeller is presented, which highlights the dominant role the engine-jet impingement on the propeller plays for the aeroacoustic characteristics of this type of aircraft configuration. A detailed analysis of specific aspects of the input surface used for the aeroacoustic analysis is made through a comparison between the results achieved using both impermeable and permeable Ffowcs-Williams–Hawkings formulations. The numerical error due to both jet exhaust and propeller wake impingement on the Ffowcs-Williams–Hawkings permeable surface as well as the impact of cutting a hole in this permeable surface to avoid possible issues of these effects are discussed.

Dokumentart:Zeitschriftenbeitrag
Titel:Aerodynamic and Aeroacoustic Analysis of Installed Pusher-Propeller Aircraft Configurations
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Yin, Jianpingjianping.yin@dlr.de
Stürmer, Arnearne.stuermer@dlr.de
Aversano, Marcomaversano@piaggioaero.it
Datum:September 2012
Erschienen in:Journal of Aircraft
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:49
DOI :10.2514/1.C031704
Seitenbereich:Seiten 1423-1433
Verlag:The American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0021-8669
Status:veröffentlicht
Stichwörter:aeroacoustic phenomena, pusher-propeller, Propeller, Installation Effects, Engine-Airframe Installation, Unsteady Aerodyanmics, CFD, CAA, Noise, Aeroacoustics
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Drehflügler (alt)
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L RR - Drehflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Der leise und komfortable Drehflügler (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Hubschrauber
Hinterlegt von: Dr.-Ing. Jianping Yin
Hinterlegt am:02 Nov 2012 14:44
Letzte Änderung:26 Mär 2015 13:48

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