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A separated flow model for semi-empirical prediction of trailing edge noise.

Schüle, Chan Yong and Rossignol, Karl-Stephane (2012) A separated flow model for semi-empirical prediction of trailing edge noise. 18. DLRG-Fach-Symposium, 6.-7. Nov. 2012, Stuttgart, Deutschland.

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Official URL: http://www.dlr.de/as/desktopdefault.aspx/tabid-652/1104_read-1678/

Abstract

An accurate description of the mean ow, the rms values and spectral shapes of the separated boundary layer play an important role in predicting trailing edge far eld noise. A possible method for describ- ing the mean and rms quantities based on a modication of Coles' Law of the Wake and Prandtls mixing length theory is presented. The model is validated against related experiments from literature and new mea- surements conducted at DLR Braunschweig. Additionally, a comparison between the van Karman spectrum for isotropic turbulence and the mea- sured spectra inside the separated boundary layer is given. The results strongly suggest that the spectra as well as the mean and rms values of the separated ow can be modeled with the proposed approaches

Item URL in elib:https://elib.dlr.de/78666/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:A separated flow model for semi-empirical prediction of trailing edge noise.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schüle, Chan YongUNSPECIFIEDUNSPECIFIED
Rossignol, Karl-StephaneUNSPECIFIEDUNSPECIFIED
Date:6 November 2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:Jahresbericht 2012
Page Range:pp. 198-199
Series Name:STAB-Mitteilung
Status:Published
Keywords:Trailing edge, noise, modeling, separated ow, Coles Law of the Wake, van Karman spectrum
Event Title:18. DLRG-Fach-Symposium
Event Location:Stuttgart, Deutschland
Event Type:national Conference
Event Dates:6.-7. Nov. 2012
Organizer:DLRG
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Wind Energy (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Windenergie (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Technical Acoustics
Institute of Aerodynamics and Flow Technology
Deposited By: Rossignol, Karl-Stephane
Deposited On:17 Dec 2012 12:55
Last Modified:10 Jan 2013 14:14

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