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Installation Impact on Pusher CROR Engine Low Speed Performance and Noise Emission Characteristics

Stürmer, Arne and Yin, Jianping (2012) Installation Impact on Pusher CROR Engine Low Speed Performance and Noise Emission Characteristics. International Journal of Engineering Systems Modelling and Simulation, 4 (1-2), pp. 59-68. Inderscience Publishers. doi: 10.1504/IJESMS.2012.044844. ISSN 1755-9758.

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Official URL: http://inderscience.metapress.com/content/a321737471537344/


The renewed interest in the contra–rotating open rotor (CROR) as a potential highly efficient powerplant for future transport aircraft has prompted a study into the aerodynamic and aeroacoustic performance of this type of engine at DLR. With significant technical challenges related to the noise emissions and installation effects remaining to be addressed prior to realisation of a viable engine of this type, a study of a generic pusher–configuration CROR propulsion system is presented, which focuses on the impact of installation effects on the rotor aerodynamics and noise emissions. The two primary installation effects angle of attack and the pylon wake are studied utilising a high–fidelity coupled analysis based on unsteady Reynolds averaged Navier–Stokes (uRANS) simulations with the CFD solver TAU and the aeroacoustic analysis tool APSIM, both developed at DLR, highlighting the importance of these aspects on CROR in–plane loads and rotor noise emissions.

Item URL in elib:https://elib.dlr.de/75320/
Document Type:Article
Title:Installation Impact on Pusher CROR Engine Low Speed Performance and Noise Emission Characteristics
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Stürmer, Arnearne.stuermer (at) dlr.deUNSPECIFIED
Yin, Jianpingjianping.yin (at) dlr.deUNSPECIFIED
Date:11 January 2012
Journal or Publication Title:International Journal of Engineering Systems Modelling and Simulation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1504/IJESMS.2012.044844
Page Range:pp. 59-68
Publisher:Inderscience Publishers
Keywords:contra–rotating open rotors, CROR engines, installation effects, uRANS, CAA, rotor noise, unsteady aerodynamics, interaction tones, multi–disciplinary simulation, 1P loads, low speed performance, noise emissions, transport aircraft, aeroacoustics, CROR propulsion systems, simulation, angle of attack, pylon wake
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Stürmer, Arne
Deposited On:11 Apr 2012 08:48
Last Modified:14 Dec 2019 04:20

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