Aerodynamic and Aeroacoustic Analysis of Installed Pusher-Propeller Aircraft Configurations
Yin, Jianping and Stuermer, Arne and Aversano, Marco (2012) Aerodynamic and Aeroacoustic Analysis of Installed Pusher-Propeller Aircraft Configurations. Journal of Aircraft, Vol. 49 (No. 5), pp. 1423-1433. The American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.C031704. ISSN 0021-8669.
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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.
|Title:||Aerodynamic and Aeroacoustic Analysis of Installed Pusher-Propeller Aircraft Configurations|
|Journal or Publication Title:||Journal of Aircraft|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 1423-1433|
|Publisher:||The American Institute of Aeronautics and Astronautics (AIAA)|
|Keywords:||aeroacoustic phenomena, pusher-propeller, Propeller, Installation Effects, Engine-Airframe Installation, Unsteady Aerodyanmics, CFD, CAA, Noise, Aeroacoustics|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L RR - Rotorcraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L RR - Rotorcraft Research|
|DLR - Research theme (Project):||L - The Quiet and Comfortable Rotorcraft|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Helicopters|
|Deposited By:||Dr.-Ing. Jianping Yin|
|Deposited On:||02 Nov 2012 14:44|
|Last Modified:||26 Mar 2013 13:42|
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