DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Propagation of Tollmien Schlichting waves in a wing boundary layer

Seitz, A. and Horstmann, K.H. (2003) Propagation of Tollmien Schlichting waves in a wing boundary layer. In: Recent Results in laminar-turbulent transition, 86. Springer Verlag, Berlin, Heidelberg, New York. DFG Abschluß-Kolloquium Schwerpunkt "Transition", Stuttgart (de), 22.-24.04.2002. ISBN 3-540-40490-2

Full text not available from this repository.


So far, very little is known about instability wave propagation in a wing boundary layer in free flight. Therefore, flight tests were performed in order to investigate under conditions of natural excitement Tollmien-Schlichting waves as primary instabilities in transition to turbulence. Measurements were done with a 64 element hot-film array. the array was bonded to a laminar glove on the right hand wing of the flying testbed LFU 205. Amplitudes of wall shear stress fluctuations induced by Tollmien-Schlichting waves were quantified by employing a calibration procedure for hot-film sensors. Analysis of measured data reveals a brodband frequency spectrum of TS-instabilities typical for wave packages, while the spanwise extend of wave trains is comparatively small (in the order of about 3 wavelengths).

Item URL in elib:https://elib.dlr.de/12716/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:Propagation of Tollmien Schlichting waves in a wing boundary layer
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Journal or Publication Title:Recent Results in laminar-turbulent transition
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:Springer Verlag, Berlin, Heidelberg, New York
Series Name:Notes on numerical fluid mechanics and multidisciplinary design.
Keywords:Laminar flow, Boundary Layer, Tollmien-Schlichting waves
Event Title:DFG Abschluß-Kolloquium Schwerpunkt "Transition", Stuttgart (de), 22.-24.04.2002
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Grant, Claudia
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:23

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.