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 (1â2/2012), pp. 59-68. Inderscience Enterprises Ltd. DOI: 10.1504/IJESMS.2012.044844. ISSN 1755-9758.
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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.
|Title:||Installation Impact on Pusher CROR Engine Low Speed Performance and Noise Emission Characteristics|
|Date:||11 January 2012|
|Journal or Publication Title:||International Journal of Engineering Systems Modelling and Simulation|
|In ISI Web of Science:||No|
|Page Range:||pp. 59-68|
|Publisher:||Inderscience Enterprises Ltd|
|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:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Transport Aircraft|
Institute of Aerodynamics and Flow Technology > Helicopters
|Deposited By:||Arne Stürmer|
|Deposited On:||11 Apr 2012 08:48|
|Last Modified:||26 Mar 2013 13:38|
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