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Aerodynamic and Aeroacoustic Analysis of Contra-Rotating Open Rotor Propulsion Systems at Low-Speed Flight Conditions

Stürmer, Arne and Yin, Jianping (2008) Aerodynamic and Aeroacoustic Analysis of Contra-Rotating Open Rotor Propulsion Systems at Low-Speed Flight Conditions. 16. DGLR/STAB-Symposium, 2008-11-03 - 2008-11-04, Aachen. (Unpublished)

Full text not available from this repository.

Abstract

Contra Rotating Open Rotor (CROR) propulsion systems have come back into focus as a possible economic and environmentally friendly powerplant for future transport aircraft. Having been widely applied to the simulations of single rotation propellers, the DLR CFD code TAU and the aeroacoustic analysis tool APSIM have been employed for the analysis of the complex aerodynamics and aeroacoustics of this type of aircraft propulsion. In order to demonstrate the codes applicability to these types of simulations, a generic 8x8 pusher CROR powerplant was designed and uRANS computations at typical sea-level take-off conditions of M = 0:2 were performed for two angles of attack. The results allow for a detailed analysis of the aerodynamic interactions between the two rotors as well as the noise generation mechanisms.

Document Type:Conference or Workshop Item (Speech)
Additional Information:Nur Vortrag, Veröffentlichung in Konferenzband erfolgt getrennt
Title:Aerodynamic and Aeroacoustic Analysis of Contra-Rotating Open Rotor Propulsion Systems at Low-Speed Flight Conditions
Authors:
AuthorsInstitution or Email of Authors
Stürmer, ArneUNSPECIFIED
Yin, JianpingUNSPECIFIED
Date:4 November 2008
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:Aerodynamics, Aeroacoustics, CFD, uRANS, CAA, APSIM, CROR, Open Rotor, Propeller, Interaction Tones
Event Title:16. DGLR/STAB-Symposium
Event Location:Aachen
Event Type:national Conference
Event Dates:2008-11-03 - 2008-11-04
Organizer:DGLR/STAB
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignement
DLR - Research theme (Project):L -- no assignement
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aerodynamics and Flow Technology > Technical Acoustics
Institute of Aerodynamics and Flow Technology
Deposited By: Arne Stürmer
Deposited On:07 Jan 2009
Last Modified:27 Apr 2009 15:40

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