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A Study on Trailing Edge Noise Sources using High-Speed Particle Image Velocimetry

Schröder, A. and Herr, M., AS-BS, and Lauke, T., AS-BS, and Dierksheide, U., LaVision, Göttingen, (2004) A Study on Trailing Edge Noise Sources using High-Speed Particle Image Velocimetry. In: Proceedings (rev.) Symposium, pp. 1-8. 14th Symposium of STAB 2004, Bremen, 16-18 November, 2004.

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Abstract

The noise generation of turbulent flows near the edges of airplanes and automobiles is a general design problem and its importance increases in times of growing traffic. Turbulent boundary layers being convected past the trailing edge into the wake are known to generate an intense, broadband scattering noise. In this feasibility study the high-speed PIV technique was applied to a generic trailing edge noise experiment as performed on a flat plate model in the Aeroacoustic Wind Tunnel Braunschweig (AWB). Trailing edge source noise was measured simultaneously with instantaneous velocity vector fields to relate the generated sound to the ensuing aeroacoustic source quantities. The first step towards a new procedure for trailing edge noise prediction, combining numerical methods with the high-speed PIV measurement, is presented.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:A Study on Trailing Edge Noise Sources using High-Speed Particle Image Velocimetry
Authors:
AuthorsInstitution or Email of Authors
Schröder, A.UNSPECIFIED
Herr, M., AS-BS, UNSPECIFIED
Lauke, T., AS-BS, UNSPECIFIED
Dierksheide, U., LaVision, Göttingen, UNSPECIFIED
Date:2004
Journal or Publication Title:Proceedings (rev.) Symposium
Page Range:pp. 1-8
Editors:
EditorsEmail
STAB, UNSPECIFIED
Status:Published
Keywords:High speed PIV, trailing edge noise, turbulent boundary layer, caa
Event Title:14th Symposium of STAB 2004, Bremen, 16-18 November, 2004
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Ilka Micknaus
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:37

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