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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), 2012-06-04 - 2012-06-06, 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/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
| Title: | Two-Dimensional Evaluation of Turbulent Boundary Layer Pressure Fluctuations at Cruise Flight Conditions | ||||||||||||
| Authors: |
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| 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: |
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| 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 Start Date: | 4 June 2012 | ||||||||||||
| Event End Date: | 6 June 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: | 24 Apr 2024 19:41 |
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