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DLR experimental and numerical methods for the study of helicopter acoustic scattering in "Aeroacoustics research in Europe: The CEAS-ASC report on 2019 highlights"

Yin, Jianping and Rossignol, Karl-Stephane (2020) DLR experimental and numerical methods for the study of helicopter acoustic scattering in "Aeroacoustics research in Europe: The CEAS-ASC report on 2019 highlights". Journal of Sound and Vibration, 484, pp. 1-33. Elsevier. doi: 10.1016/j.jsv.2020.115540. ISSN 0022-460X.

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Abstract

The GARTEUR AG24 shielding experiments were conducted in DLR’s Acoustic Wind tunnel in Braunschweig (AWB), where the scattering for generic configurations was studied using two point sources and one rotor source. Comparisons of the experimental results with the numerical simulations have been carried out. The numerical results are obtained using DLR’s fast multipole boundary element method. The comparison of the scattering of the GARTEUR helicopter model shows a very good agreement in terms of amplitude and phase. In the framework of AG24, a unique noise scattering database was establishedthrough dedicated wind tunnel tests, enabling the assessment, and further development, of current noise scattering predictiontools capabilities.

Item URL in elib:https://elib.dlr.de/137507/
Document Type:Article
Title:DLR experimental and numerical methods for the study of helicopter acoustic scattering in "Aeroacoustics research in Europe: The CEAS-ASC report on 2019 highlights"
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Yin, JianpingJianping.Yin (at) dlr.deUNSPECIFIED
Rossignol, Karl-StephaneKarl-Stephane.Rossignol (at) dlr.deUNSPECIFIED
Date:27 June 2020
Journal or Publication Title:Journal of Sound and Vibration
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:484
DOI :10.1016/j.jsv.2020.115540
Page Range:pp. 1-33
Publisher:Elsevier
Series Name:Elsevier
ISSN:0022-460X
Status:Published
Keywords:Helicopter Acoustics, Rotorcraft Fuselage Scattering, Computational Aeroacoustic, Installation Effects, noise Propagation, Boundary Element Method,GARTEUR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Quiet und Comfortable Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, BS
Institute for Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Yin, Dr.-Ing. Jianping
Deposited On:17 Nov 2020 07:45
Last Modified:20 Jul 2021 11:07

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