Yin, Jianping and Stuermer, Arne (2010) Aerodynamic and aeroacoustic analysis of installed pusher propeller aircraft configurations (Section 7.2). Journal of Sound and Vibration, 329, pp. 4824-4825. Elsevier. DOI: 10.1016/j.jsv.2010.06.001. ISSN 0022-460X.
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the aeroacoustic phenomena characteristic of a pusher-propeller cofiguration and their aerodynamic causes are discussed and analyzed. The configuration under study is an industrially relevant design with a wing-mounted pusher propeller, which features a close coupling of the turboshaft engines 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 the DLR TAU-Code with the DLR APSIM Code for a subsequent aeroacoustic evaluation. APSIM computes the sound propagation into the fareld based on the Ffowcs-Williams/Hawkings (FW-H) equations. 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 studied. A detailed analysis of specific aspects of the numerical approach for the aeroacoustic analysis is made through a comparison between the results achieved using both a FW-H impermeable and permeable formulation. The numerical error due to both jet exhaust and propeller wake impingement on the FW-H 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 (Section 7.2)|
|Journal or Publication Title:||Journal of Sound and Vibration|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 4824-4825|
|Series Name:||Aeroacoustics research in Europe: The CEAS-ASC report on 2009 highlights|
|Keywords:||Propeller, Installation Effects, Engine-Airframe Installation, Unsteady Aerodyanmics, CFD, CAA, Noise, Aeroacoustics|
|HGF - Research field:||Energy|
|HGF - Program:||other|
|HGF - Program Themes:||E - no assignement|
|DLR - Research area:||Energy|
|DLR - Program:||E - no assignement|
|DLR - Research theme (Project):||E -- no assignement|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology|
|Deposited By:||Dr.-Ing. Jianping Yin|
|Deposited On:||07 Jan 2011 09:29|
|Last Modified:||07 Feb 2013 20:35|
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