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Aeroacoustic wind tunnel testing of a 1:6.5 model scale innovative regional turboprop

Di Marco, Alessandro and Camussi, Roberto and Burghignoli, Lorenzo and Centracchio, Francesco and Averardo, Michele and Di Giulio, Massimiliano and Gemma, Riccardo and Adden, Stephan and Aschwanden, Peter and Müller, Jürg and Berkefeld, Tobias and Haxter, Stefan and Amoroso, Francesco (2018) Aeroacoustic wind tunnel testing of a 1:6.5 model scale innovative regional turboprop. In: 24th AIAA/CEAS Aeroacoustics Conference (3601), pp. 1-22. AIAA. 24th AIAA/CEAS Aeroacoustics Conference 2018, 25.-29. June 2018, Atlanta, USA. DOI: 10.2514/6-2018-3601 ISBN 978-162410560-9

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Official URL: https://doi.org/10.2514/6.2018-3601


The aeroacoustics of an innovative regional turboprop aircraft is experimentally investigated on a 6.5 scaled model. The measurement campaign was performed at the RUAG Large Subsonic Wind Tunnel in Emmen. The model was mounted on a ceiling strut in the 7-by-5 meters test section, not acoustically treated. The aeroacoustic noise generated by the aircraft model was evaluated analyzing the pressure fluctuations acquired through a phased array of 144 microphones installed on a flat-plate on the test section floor. Pressure fluctuations were acquired in different configurations the most important ones being: the baseline solution (no innovative device applied) with engine on and the model equipped with lined Flap. For the engine on configuration, take-off and approach settings were tested, whereas only the landing configurations was investigated for the baseline lined flap comparison. The main parameters varied during the tests were: the propeller thrust, the propeller revolutions per minute, the speed of the air-flow, the incidence angle of the aircraft and the position of the microphone array. Data were rocessed and then analyzed in the frequency domain and using a conventional beamforming algorithm to retrieve the sound

Item URL in elib:https://elib.dlr.de/122138/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA 2018-3601, Paper DOI: 10.2514/6.2018-3601
Title:Aeroacoustic wind tunnel testing of a 1:6.5 model scale innovative regional turboprop
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Di Marco, AlessandroUniverity Roma TREUNSPECIFIED
Camussi, RobertoUniverity Roma TREUNSPECIFIED
Burghignoli, LorenzoUniverity Roma TREUNSPECIFIED
Centracchio, FrancescoUniverity Roma TREUNSPECIFIED
Averardo, MicheleLeonardo CompanyUNSPECIFIED
Di Giulio, MassimilianoLeonardo CompanyUNSPECIFIED
Gemma, RiccardoLeonardo CompanyUNSPECIFIED
Adden, StephanIBK Innovation GmbHUNSPECIFIED
Aschwanden, PeterRUAG AviationUNSPECIFIED
Müller, JürgRUAG AviationUNSPECIFIED
Berkefeld, Tobiastobias.berkefeld (at) dlr.deUNSPECIFIED
Haxter, StefanStefan.Haxter (at) dlr.deUNSPECIFIED
Amoroso, FrancescoEuroTech SasUNSPECIFIED
Date:25 June 2018
Journal or Publication Title:24th AIAA/CEAS Aeroacoustics Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6-2018-3601
Page Range:pp. 1-22
Series Name:Conference Proceedings Online
Keywords:Aeroacoustic Measurement
Event Title:24th AIAA/CEAS Aeroacoustics Conference 2018
Event Location:Atlanta, USA
Event Type:international Conference
Event Dates:25.-29. June 2018
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
Institute for Aerodynamics and Flow Technology > Ground Vehicles
Deposited By: Micknaus, Ilka
Deposited On:04 Dec 2018 16:54
Last Modified:04 Dec 2018 16:54

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