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Trailing edge noise source reconstruction by means of TR-PIV

Schröder, Andreas and Herr, Michaela and Lauke, Thomas and Käpernick, Kristian and Dierkheide, Uwe (2005) Trailing edge noise source reconstruction by means of TR-PIV. PivNet 2 Workshop 2.2.4 on PIV technique for car industry, 2005-11-17 - 2005-11-18, Grugliasco-Torino (Italy).

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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)
Title:Trailing edge noise source reconstruction by means of TR-PIV
AuthorsInstitution or Email of Authors
Schröder, AndreasUNSPECIFIED
Käpernick, KristianUNSPECIFIED
Dierkheide, UweLaVision
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 11
Keywords:PIV, aeroacoustic, car industrie
Event Title:PivNet 2 Workshop 2.2.4 on PIV technique for car industry
Event Location:Grugliasco-Torino (Italy)
Event Type:international Conference
Event Dates:2005-11-17 - 2005-11-18
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:24 Jan 2006
Last Modified:14 Jan 2010 20:20

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