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Aeroacoustic Investigation of a High-Lift Device by Means of Synchronized PIV and Microphone Measurements
Henning, Arne and Wrede, Björn and Geisler, Reinhard (2012) Aeroacoustic Investigation of a High-Lift Device by Means of Synchronized PIV and Microphone Measurements. 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 09.- 12. Jul. 2012, Lisbon, Portugal.
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Official URL: http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2012/program.asp
Abstract
In the present paper the causality correlation technique is applied for the experimental detection of noise sources at the leading edge slat in a high-lift device configuration. Velocity measurements in the vicinity of the slat using PIV as well as pressure measurements at the surface of the leading edge of the main-wing are conducted. Synchronously microphone measurements in the far-field of the wing's suction and pressure side are performed. By calculating the cross-correlation between the obtained near- and far-field quantities, regularities in the near-field related to the radiated sound-field are identified. Results for different angles of attack are compared and analyzed.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Title: | Aeroacoustic Investigation of a High-Lift Device by Means of Synchronized PIV and Microphone Measurements | ||||||||
| Authors: |
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| Date: | 2012 | ||||||||
| Refereed publication: | No | ||||||||
| In SCOPUS: | No | ||||||||
| In ISI Web of Science: | No | ||||||||
| Page Range: | pp. 1-11 | ||||||||
| Series Name: | Conference Proceedings online | ||||||||
| Status: | Published | ||||||||
| Keywords: | Particle Image Velocimetry (PIV), cross correlation, causality correlation technique, aeroacoustic, far-field, microphone-array | ||||||||
| Event Title: | 16th International Symposium on Applications of Laser Techniques to Fluid Mechanics | ||||||||
| Event Location: | Lisbon, Portugal | ||||||||
| Event Type: | international Conference | ||||||||
| Event Dates: | 09.- 12. Jul. 2012 | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Aeronautics | ||||||||
| HGF - Program Themes: | L AR - Aircraft Research | ||||||||
| DLR - Research area: | Aeronautics | ||||||||
| DLR - Program: | L AR - Aircraft Research | ||||||||
| DLR - Research theme (Project): | L - Simulation & Validation | ||||||||
| Location: | Göttingen | ||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Experimental Methods | ||||||||
| Deposited By: | Ilka Micknaus | ||||||||
| Deposited On: | 19 Jul 2012 09:18 | ||||||||
| Last Modified: | 09 Oct 2012 15:03 |
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