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Herr, Michaela (2006) On the Design of Silent Trailing-Edges. New Results in Numerical and Experimental Mechanics VI, Contributions to the 15th STAB/DGLR Symposium Darmstadt, Germany, 2006, 96, pp. 430-437. Springer Verlag, Berlin-Heidelberg-New York. ISBN 3-540-74458-4; 978-3-540-74458-0.
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Official URL: http://www.springerlink.com/content/n58624l2n122w962/?p=3c204edf7120424ea78e4d3215bde953&pi=0
Abstract
Trailing-edge noise data from an experimental study on a flat-plate and on a two-dimensional NACA 0012-like airfoil are presented. Within extensive measurements in the Aeroacoustic Wind Tunnel Braunschweig various flow-permeable (comb-type) edge modifications were tested with respect to their noise reduction capability. Among numerous design parameters a narrow slit width was identified as major requirement for a low-noise trailing-edge design whereas flexibility of the comb material was found to be not imperative for such edge noise reduction means. Because both boundary-layer tripping and trailing-edge thickness show significant influence on trailing-edge noise, a detailed description of these effects is provided to enable an accurate interpretation of corresponding noise test data.
| Item URL in elib: | https://elib.dlr.de/47782/ | ||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||
| Additional Information: | Presented at the 15th DGLR-Symposium of STAB, TU Darmstadt, Germany, 29 Nov. – 01 Dec. 2006 | ||||||||||||||||||||||||
| Title: | On the Design of Silent Trailing-Edges | ||||||||||||||||||||||||
| Authors: |
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| Date: | November 2006 | ||||||||||||||||||||||||
| Journal or Publication Title: | New Results in Numerical and Experimental Mechanics VI, Contributions to the 15th STAB/DGLR Symposium Darmstadt, Germany, 2006 | ||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||||||
| Volume: | 96 | ||||||||||||||||||||||||
| Page Range: | pp. 430-437 | ||||||||||||||||||||||||
| Editors: |
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| Publisher: | Springer Verlag, Berlin-Heidelberg-New York | ||||||||||||||||||||||||
| Series Name: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||
| ISBN: | 3-540-74458-4; 978-3-540-74458-0 | ||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||
| Keywords: | Trailing-Edge Noise Reduction, Airframe Noise | ||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||
| HGF - Program Themes: | L VU - Air Traffic and Environment (old) | ||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||
| DLR - Program: | L VU - Air Traffic and Environment | ||||||||||||||||||||||||
| DLR - Research theme (Project): | L - Quiet Air Traffic (old) | ||||||||||||||||||||||||
| Location: | Braunschweig | ||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Technical Acoustics | ||||||||||||||||||||||||
| Deposited By: | Herr, Dr. Michaela | ||||||||||||||||||||||||
| Deposited On: | 26 Mar 2009 | ||||||||||||||||||||||||
| Last Modified: | 15 Mar 2024 07:31 |
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