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The Case for Counter-Rotation of Installed Contra-Rotating Open Rotor Propulsion Systems

Stürmer, Arne und Yin, Jianping (2012) The Case for Counter-Rotation of Installed Contra-Rotating Open Rotor Propulsion Systems. 30th AIAA Applied Aerodynamics Conference, 25-28 June 2012, New Orleans, LA, USA.

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Kurzfassung

Contra Rotating Open Rotor (CROR) propulsion systems have seen renewed interest as a possible economic and environmentally friendly powerplant for future transport aircraft. Installation effects, i.e. the mutual interactions between airframe components and the rotors, have a pronounced impact on the aerodynamic and aeroacoustic performance for this type of engine. In this paper, the impact on aerodynamic performance and noise emissions caused by the presence of a pylon as well as a variation in the sense of rotation of the rotors is numerically studied for a representative 10x8-bladed pusher-configuration CROR engine at typical take-off conditions. In particular, the sense of rotation influence on blade and rotor performance and loadings as well as on the handling quality relevant in-plane rotor forces is analyzed, as is the resulting impact on the noise emissions in the near- and farfield and the flyover noise results. Having been widely applied to the simulations of single as well as contra-rotation propellers, the DLR CFD code TAU and the aeroacoustic analysis tool APSIM allow for a detailed analysis and an improved understanding of the complex aerodynamics and aeroacoustics of this type of propulsion system.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:The Case for Counter-Rotation of Installed Contra-Rotating Open Rotor Propulsion Systems
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Stürmer, Arnearne.stuermer@dlr.de
Yin, Jianpingjianping.yin@dlr.de
Datum:25 Juni 2012
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Contra-Rotating Open Rotor, CROR, uRANS, CFD, CAA, Interaction tones
Veranstaltungstitel:30th AIAA Applied Aerodynamics Conference
Veranstaltungsort:New Orleans, LA, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:25-28 June 2012
Veranstalter :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 - Flugphysik (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Transportflugzeuge
Institut für Aerodynamik und Strömungstechnik > Hubschrauber
Hinterlegt von: Arne Stürmer
Hinterlegt am:15 Nov 2012 11:39
Letzte Änderung:26 Mär 2015 13:48

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