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On the Design of Silent Trailing-Edges

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

Full text not available from this repository.

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/
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:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Herr, MichaelaUNSPECIFIEDUNSPECIFIED
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:
EditorsEmail
Tropea, CameronUNSPECIFIED
Jakirlic, SuadUNSPECIFIED
Heinemann, Hans-JoachimUNSPECIFIED
Henke, RolfUNSPECIFIED
Hönlinger, HeinzUNSPECIFIED
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, Michaela
Deposited On:26 Mar 2009
Last Modified:22 Jan 2018 16:50

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