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Measurements of Trailing-Edge-Noise Sources by means of Time-Resolved PIV

Schröder, Andreas and Herr, Michaela and Lauke, Thomas and Dierksheide, Uwe (2005) Measurements of Trailing-Edge-Noise Sources by means of Time-Resolved PIV. 6th International Symposium on Particle Image Velocimetry, 2005-09-21 - 2005-09-23, Pasadena, California (USA).

Full text not available from this repository.

Abstract

The noise generation of turbulent flows at the trailing edges of airfoils 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 time resolved 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 noise emission 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 time resolved PIV measurement, is presented.

Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information: LIDO-Berichtsjahr=2005,
Title:Measurements of Trailing-Edge-Noise Sources by means of Time-Resolved PIV
Authors:
AuthorsInstitution or Email of Authors
Schröder, AndreasUNSPECIFIED
Herr, MichaelaUNSPECIFIED
Lauke, ThomasUNSPECIFIED
Dierksheide, UweLaVision, Göttingen
Date:2005
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 8
Series Name:CD-ROM Conference Papers
Status:Published
Keywords:PIV, Trailing-Edge-Noise Sources, Turbulent boundary-layers
Event Title:6th International Symposium on Particle Image Velocimetry
Event Location:Pasadena, California (USA)
Event Type:international Conference
Event Dates:2005-09-21 - 2005-09-23
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: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Technical Acoustics
Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:31 Jan 2006
Last Modified:27 Apr 2009 04:56

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