Haxter, Stefan (2018) In-Flight Measurement of the Turbulent Boundary Layer Coherence. In: 28th Aeroacoustic Symposium of the Japan Society of Mechanical Engineers. 28th Aeroacoustic Symposium of the Japan Society of Mechanical Engineers, 2018-12-05 - 2018-12-06, Nagasaki, Japan.
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Official URL: https://www.jsme.or.jp/english/
Abstract
Coherence lengths of the turbulent boundary layer pressure fluctuations were measured in flight on the A320 "ATRA" test carrier. A 3-window array was used in order to characterize the pressure fluctuations. The problem of an unknown flow direction was approached by utilizing the two-dimensional sensor distribution and a 2D fitting method rather than a 1D fitting method. Using the analysis, both, lateral coherence length, longitudinal coherence length, and local flow angle were measured. The coherence lengths were compared to model predictions and the importance of taking the flow angle into account was confirmed.
| Item URL in elib: | https://elib.dlr.de/126592/ | ||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||
| Title: | In-Flight Measurement of the Turbulent Boundary Layer Coherence | ||||||||
| Authors: |
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| Date: | December 2018 | ||||||||
| Journal or Publication Title: | 28th Aeroacoustic Symposium of the Japan Society of Mechanical Engineers | ||||||||
| Refereed publication: | Yes | ||||||||
| Open Access: | No | ||||||||
| Gold Open Access: | No | ||||||||
| In SCOPUS: | No | ||||||||
| In ISI Web of Science: | No | ||||||||
| Series Name: | Book of Abstracts | ||||||||
| Status: | Published | ||||||||
| Keywords: | Flight Test, Coherence length, Acoustic, Cabin noise | ||||||||
| Event Title: | 28th Aeroacoustic Symposium of the Japan Society of Mechanical Engineers | ||||||||
| Event Location: | Nagasaki, Japan | ||||||||
| Event Type: | international Conference | ||||||||
| Event Start Date: | 5 December 2018 | ||||||||
| Event End Date: | 6 December 2018 | ||||||||
| Organizer: | The Japan Society of Mechanical Engineers | ||||||||
| Institution: | Deutsches Zentrum für Luft- und Raumfahrt e.V. | ||||||||
| Department: | AS-EXV | ||||||||
| 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 (old) | ||||||||
| Location: | Göttingen | ||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Experimental Methods, GO | ||||||||
| Deposited By: | Micknaus, Ilka | ||||||||
| Deposited On: | 04 Mar 2019 02:25 | ||||||||
| Last Modified: | 24 Apr 2024 20:30 |
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