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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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)|
|Title:||A Study on Trailing Edge Noise Sources using High-Speed Particle Image Velocimetry|
|Journal or Publication Title:||Proceedings (rev.) Symposium|
|Page Range:||pp. 1-8|
|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|
|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 - 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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