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Towards the Applicability of the Modified von Karman Spectrum to Predict Trailing Edge Noise

Bauer, Marcus and Zeibig, Andreas (2004) Towards the Applicability of the Modified von Karman Spectrum to Predict Trailing Edge Noise. 14. DGLR STAB Symposium, 16.-18. Nov. 2004, Bremen, Deutschland.

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Abstract

Trailing edge noise can be predicted with the help of a synthetic turbulent velocity field. Assuming isotropic conditions, this field may be generated via an energy spectrum of turbulence like the modified von Karman spectrum (MVKS). In this work, one-dimensional wavenumber spectra of turbulence obtained from hot-wire measurements at the trailing edges of a thin, flat plate and a NACA0012 airfoil were compared to the respective spectra extracted from the MVKS. Good agreement at all measuring positions is possible with a modified form of the MVKS. The remaining discrepancies can be attributed to the anisotropy of boundary layer turbulence.

Item URL in elib:https://elib.dlr.de/59937/
Document Type:Conference or Workshop Item (Paper)
Title:Towards the Applicability of the Modified von Karman Spectrum to Predict Trailing Edge Noise
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bauer, Marcusmarcus.bauer (at) dlr.deUNSPECIFIED
Zeibig, AndreasTU DresdenUNSPECIFIED
Date:November 2004
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Trailing Edge Noise Turbulence Spectra
Event Title:14. DGLR STAB Symposium
Event Location:Bremen, Deutschland
Event Type:Workshop
Event Dates:16.-18. Nov. 2004
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Quiet Air Traffic (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Bauer, Marcus
Deposited On:16 Sep 2009 16:21
Last Modified:31 Jul 2019 19:25

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