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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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|
|In ISI Web of Science:||No|
|Page Range:||pp. 1-11|
|Series Name:||Conference Proceedings online|
|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:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Simulation & Validation|
|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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