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Two-Dimensional Evaluation of Turbulent Boundary Layer Pressure Fluctuations at Cruise Flight Conditions

Haxter, Stefan and Spehr, Carsten (2012) Two-Dimensional Evaluation of Turbulent Boundary Layer Pressure Fluctuations at Cruise Flight Conditions. In: 18th AIAA/CEAS Aeroacoustics Conference 2012 (33rd AIAA Aeroacoustics Conference) (AIAA 2), pp. 1-17. Conference Proceedings online. 18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference), 04. - 06. Jun. 2012, Colorado Springs, CO, USA. DOI: 10.2514/6.2012-2139 ISBN 978-160086932-7

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Official URL: https://doi.org/10.2514/6.2012-2139

Abstract

A distributed pressure transducer array was installed on an Airbus model A320 airplane and measurements were performed under various cruise flight conditions. Turbulent boundary layer pressure fluctuations were recorded at several flight altitudes and velocities. The array was installed directly in front of the wing root by replacing three pax windows with aluminum dummy windows equipped with piezo-resistive pressure sensors. Evaluating the signals via a frequency-domain array processing technique provided information about local flow phenomena. Narrow-band convectional direction was extracted from the measurement data and decay of coherence was determined for the predominant flow direction. Two dimensional coherence of turbulent structures and wavenumber spectra were compared with the empirical models of Corcos and Efimtsov.

Item URL in elib:https://elib.dlr.de/75134/
Document Type:Conference or Workshop Item (Speech)
Title:Two-Dimensional Evaluation of Turbulent Boundary Layer Pressure Fluctuations at Cruise Flight Conditions
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Haxter, Stefanstefan.haxter (at) dlr.dehttps://orcid.org/0000-0002-9232-2802
Spehr, Carstencarsten.spehr (at) dlr.dehttps://orcid.org/0000-0002-2744-3675
Date:11 November 2012
Journal or Publication Title:18th AIAA/CEAS Aeroacoustics Conference 2012 (33rd AIAA Aeroacoustics Conference)
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :10.2514/6.2012-2139
Page Range:pp. 1-17
Editors:
EditorsEmailEditor's ORCID iD
UNSPECIFIEDAIAAUNSPECIFIED
Publisher:Conference Proceedings online
Series Name:Conference Proceedings online
ISBN:978-160086932-7
Status:Published
Keywords:Coherence, flow direction, microphone array, flight test, turbulent boundary layer, cruise flight
Event Title:18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference)
Event Location:Colorado Springs, CO, USA
Event Type:international Conference
Event Dates:04. - 06. Jun. 2012
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Deposited By: Micknaus, Ilka
Deposited On:16 Jul 2012 13:08
Last Modified:15 Jul 2020 11:45

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