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Henning, Arne and Spehr, Carsten and Wrede, Björn and Geisler, Reinhard and Pott-Pollenske, Stephan-Michael (2012) Aeroacoustic Investigations of a Leading Edge Slat by means of the Causality Correlation Method. 18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference), 2012-06-04 - 2012-06-06, Colorado Springs, Colorado, USA. doi: 10.2514/6.2012-2098.
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Official URL: http://www.aiaa.org/events/aeroacoustics/11-0437FINALv1_w.pdf
Abstract
The goal of the present paper is the experimental detection of noise sources at the leading edge slat in a high-lift device configuration. The noise generation mechanisms are experimentally investigated by means of pressure and velocity measurements in the near-field and microphone measurements in the far-field. The measurements were conducted in a synchronized manner so as to enable the calculation of the cross-correlation between the acoustic pressure and the near-field fluctuations. The main idea of the concept presented here was to use the coefficient matrix obtained from the aforementioned correlation to identify regularities in the near-field fluctuations that are related to the radiated sound- field.
| Item URL in elib: | https://elib.dlr.de/71845/ | ||||||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||||||||||||||
| Title: | Aeroacoustic Investigations of a Leading Edge Slat by means of the Causality Correlation Method | ||||||||||||||||||||||||
| Authors: |
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| Date: | 2012 | ||||||||||||||||||||||||
| Refereed publication: | No | ||||||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||||||
| Gold Open Access: | Yes | ||||||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||||||
| DOI: | 10.2514/6.2012-2098 | ||||||||||||||||||||||||
| Page Range: | pp. 1-12 | ||||||||||||||||||||||||
| Series Name: | Conference Proceedings online | ||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||
| Keywords: | Causality Correlation Method, Particle Image Velocimetry (PIV), cross correlation, aeroacoustic | ||||||||||||||||||||||||
| Event Title: | 18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference) | ||||||||||||||||||||||||
| Event Location: | Colorado Springs, Colorado, 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: | Braunschweig , Göttingen | ||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Technical Acoustics Institute of Aerodynamics and Flow Technology > Experimental Methods | ||||||||||||||||||||||||
| Deposited By: | Micknaus, Ilka | ||||||||||||||||||||||||
| Deposited On: | 16 Jul 2012 13:33 | ||||||||||||||||||||||||
| Last Modified: | 24 Apr 2024 19:37 |
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