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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 (2018) A High-Speed PIV Study on trailing-edge noise sources. In: Particle Image Velocimetry - A Practical Guide (3rd Edition) Particle Image Velocimetry, A Practical Guide, 3 (14.3). Springer International Publishing. 508 - 512. ISBN 978-3-319-68851-0.

Full text not available from this repository.

Official URL: https://doi.org/10.1007/978-3-319-68852-7

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. 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 has been performed, based on HS-PIV input data. The source term of the acoustic analogies was directly computed from the measured HS-PIV velocity field quantities (namely the instantaneous velocity, vorticity and the mean flow). After linear interpolation onto the body-fitted block-structured grid for the trailing edge, these source term values were fed into the subsequent computational aeroacoustic (CAA) simulations.

Item URL in elib:https://elib.dlr.de/122437/
Document Type:Book Section
Additional Information:eBook: ISBN978-3-319-68852-7, Seitenzahl: XXVI, 669
Title:A High-Speed PIV Study on trailing-edge noise sources
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schröder, Andreasandreas.schroeder (at) dlr.dehttps://orcid.org/0000-0002-6971-9262
Dierksheide, UweLaVision, GöttingenUNSPECIFIED
Herr, MichaelaMichaela.Herr (at) dlr.deUNSPECIFIED
Lauke, ThomasAS-TEAUNSPECIFIED
Date:April 2018
Journal or Publication Title:Particle Image Velocimetry - A Practical Guide (3rd Edition)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:3
DOI :10.1007/978-3-319-68852-7
Page Range:508 - 512
Editors:
EditorsEmail
Raffel, MarkusDLR
Willert, Christian E.DLR
Scarano, FulvioTU Delft
Kähler, Christian J.Uni BW München
Wereley, Steven T.Purdue University
Kompenhans, JürgenDLR
Publisher:Springer International Publishing
Series Name:Particle Image Velocimetry, A Practical Guide
ISBN:978-3-319-68851-0
Status:Published
Keywords:High speed PIV, airframe noise, turbulent boundary layer
Institution:Deutsches Zentrum für Luft- und Raumfahrt e.V.
Department:AS-EXV
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - VicToria
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Institute for Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Micknaus, Ilka
Deposited On:14 Jan 2019 03:44
Last Modified:14 Jan 2019 03:57

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