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A High-Speed PIV Study on Trailing-Edge Noise Sources

Schröder, Andreas and Dierksheide, Uwe and Herr, Michaela and Lauke, Thomas (2007) A High-Speed PIV Study on Trailing-Edge Noise Sources. In: Particle Image Velocimetry - A Practical Guide (2nd Edition) Experimental Fluid Mechanics. Springer Verlag, Berlin, Heidelberg, New York. pp. 344-347. ISBN 978-3-540-72307-3.

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Official URL: http://www.springer.com

Abstract

Airframe noise is essentially due to the interaction of unsteady, mostly turbulent flow with the structure of the airplane, particularly caused by vortical flows around edges or over open cavities. A classical problem in this field is the trailing edge noise, which involves different noise generating mechanisms. Extensive investigations have been conducted on airfoil- and on flat plate trailing edges. According to [380, 381, 382] the major noise contribution is provided by the span-wise component of vorticity, the corresponding dipole (”principal edge noise dipole”) is the sc. perturbed Lamb vector being perpendicular to the plane of the plate. A numerical simulation of trailing edge noise can be performed, based on such HS-PIV input data.

Document Type:Book Section
Title:A High-Speed PIV Study on Trailing-Edge Noise Sources
Authors:
AuthorsInstitution or Email of Authors
Schröder, AndreasUNSPECIFIED
Dierksheide, UweLaVision, Göttingen
Herr, MichaelaUNSPECIFIED
Lauke, ThomasUNSPECIFIED
Date:June 2007
Journal or Publication Title:Particle Image Velocimetry - A Practical Guide (2nd Edition)
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 344-347
Publisher:Springer Verlag, Berlin, Heidelberg, New York
Series Name:Experimental Fluid Mechanics
ISBN:978-3-540-72307-3
Status:Published
Keywords:high-speed PIV (HS-PIV), boundary layer, instantaneous velocity vector field
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:21 Aug 2007
Last Modified:27 Apr 2009 14:07

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