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Fast simulation of noise radiation and reduction from installed pusher propeller aircraft

Yin, Jianping and Stürmer, Arne (2013) Fast simulation of noise radiation and reduction from installed pusher propeller aircraft. CEAS Aeronautical Journal, Volume 4 (Issue 4), pp. 443-458. Springer. DOI: 10.1007/s13272-013-0089-5 ISSN 1869-5590

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Abstract

The aeroacoustic phenomena characteristic of a pusher-propeller configuration and their aerodynamic causes are discussed and analysed. 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. The coupling of an Actuator Disc model and unsteady free wake panel method is employed for the computation of the propeller unsteady aerodynamic force in “pusher” installations. The acoustic integration formulation based on Ffowcs-Williams/Hawkings equations is used to compute the sound propagation into the far field. A detailed comparison of the results from current fast coupling method with those of high-fidelity unsteady Reynolds averaged Navier–Stokes simulation will be presented and the differences between the two approaches are discussed. Furthermore, the possible noise reduction through a redesigned engine exhaust nozzle is discussed.

Item URL in elib:https://elib.dlr.de/85824/
Document Type:Article
Title:Fast simulation of noise radiation and reduction from installed pusher propeller aircraft
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Yin, Jianpingjianping.yin (at) dlr.deUNSPECIFIED
Stürmer, Arnearne.stuermer (at) dlr.deUNSPECIFIED
Date:1 December 2013
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:Volume 4
DOI :10.1007/s13272-013-0089-5
Page Range:pp. 443-458
Publisher:Springer
ISSN:1869-5590
Status:Published
Keywords:Propeller, Installation effects, Unsteady panel method, Actuator disc, Noise radiation and reduction, Aeroacoustics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Quiet and Comfortable Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Yin, Dr.-Ing. Jianping
Deposited On:28 Nov 2013 09:35
Last Modified:08 Mar 2018 19:01

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