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A Seperated Flow Model for Semi-Empirical Prediction of Trailing Edge Noise

Schüle, Chan Yong and Rossignol, Karl-Stéphane (2014) A Seperated Flow Model for Semi-Empirical Prediction of Trailing Edge Noise. In: New Results in Numerical and Experimental Fluid Mechanics IX Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 124. Springer Verlag, Cham Heidelberg New York Dordrecht London. pp. 639-647. ISBN 978-3-319-03157-6. ISSN 1612-2909

Full text not available from this repository.

Official URL: http://link.springer.com/chapter/10.1007/978-3-319-03158-3_65

Abstract

An accurate description of the mean flow, the rms values, and spectral distributions of the seperated boundary layer fluctuating velocities plays an important role in predicting trailing edge far field noise. A possible method for describing the mean and rms quantities based on a modification of Coles' law of the wake and Prandtl's mixing length theory is presented. The model is validated against related experiments from literature and new measurements conducted at DLR Braunschweig. Additionally, a comparison between the von Kármán spectrum for isotropic turbulence and the measured spectra inside the seperated boundary layer is given. The results strongly suggest that the spectra as well as the mean and rms values of the seperated flow can be modeled with the proposed approaches.

Item URL in elib:https://elib.dlr.de/88608/
Document Type:Contribution to a Collection
Additional Information:DOI: 10.1007/978-3-319-03158-3_65, Online ISBN: 978-3-319-03158-3, ISSN 1860-0824 (electronic), Library of Congress Control Number: 2013957123
Title:A Seperated Flow Model for Semi-Empirical Prediction of Trailing Edge Noise
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schüle, Chan Yongchan.schuele (at) dlr.deUNSPECIFIED
Rossignol, Karl-Stéphanekarl-stephane.rossignol (at) dlr.deUNSPECIFIED
Date:2014
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics IX
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:124
Page Range:pp. 639-647
Editors:
EditorsEmail
Dillmann, AndreasDLR
Kreplin, Hans-PeterDLR
Heller, GerdAirbus Deutschland
Krämer, EwaldUni Stuttgart
Rist, UlrichUni Stuttgart
Nitsche, WolfgangTU Berlin
Publisher:Springer Verlag, Cham Heidelberg New York Dordrecht London
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-319-03157-6
Status:Published
Keywords:Trailing Edge noise, Aeroacoustics, Empirical noise modeling, Flow seperation
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:other
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Wind Energy (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Seyfried, Beate
Deposited On:10 Apr 2014 08:11
Last Modified:10 Apr 2014 08:11

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