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Next steps in wind tunnel aeroacoustics: Measurements at flight-Reynolds numbers

Ahlefeldt, Thomas (2018) Next steps in wind tunnel aeroacoustics: Measurements at flight-Reynolds numbers. In: 5th International Workshop "Computational Experiment in AeroAcoustics" - CEAA 2018, pp. 1-5. Computational Experiment in AeroAcoustics - CEAA 2018, 19.-22. Sept. 2018, Svetlogorsk, Russia.

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Official URL: http://ceaa-w.imamod.ru/


I will present the microphone array measurement technique which was advanced at the DLR Göttingen for the use in cryogenic and/or pressurized wind tunnels. This extends the range for acoustic measurements on scaled aircraft models in start and landing configuration up to real-flight Reynolds numbers. This abstract describes the measurements carried out in the European Transonic Wind Tunnel (ETW) and presents the results. I will also give additional examples for measurements performed in a cryogenic wind tunnel and give an insight in the comparability of microphone array measurements. In the example chosen, results obtained from the same model but different wind tunnels are being compared.

Item URL in elib:https://elib.dlr.de/124134/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Eingeladene Keynote Presentation
Title:Next steps in wind tunnel aeroacoustics: Measurements at flight-Reynolds numbers
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ahlefeldt, Thomasthomas.ahlefeldt (at) dlr.dehttps://orcid.org/0000-0002-2869-2665
Date:19 September 2018
Journal or Publication Title:5th International Workshop "Computational Experiment in AeroAcoustics" - CEAA 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-5
Series Name:Conference Proceedings, Book of Abstract
Keywords:aeroacoustics, microphone array, cryogenic pressurized wind tunnel, real-flight/full-scale Reynolds number, high-lift
Event Title:Computational Experiment in AeroAcoustics - CEAA 2018
Event Location:Svetlogorsk, Russia
Event Type:international Conference
Event Dates:19.-22. Sept. 2018
Organizer:Keldysh Insitute of Applied Mathematics (Russian Academy of Sciences)
Institution:Deutsches Zentrum für Luft- und Raumfahrt e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Deposited By: Micknaus, Ilka
Deposited On:10 Jan 2019 09:00
Last Modified:10 Jan 2019 09:00

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