Studies of Reynolds Number Effects on Wing Tip Vortex Positions by Means of Laser Light Sheet (LLS) and Background Oriented Schlieren (BOS) Technique Under Cryogenic Conditions

  • D. Pallek
  • F. Klinge
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM) book series (NNFM, volume 96)


The Background Oriented Schlieren Method (BOS) and the Laser Light Sheet technique (LLS) were successfully adapted to the cryogenic European Transonic Windtunnel (ETW) and applied to wing tip vortex investigations. Applying optical measurement techniques to ETW is difficult, because of the extreme wind tunnel conditions (temperature, pressure, poor optical access).


Reynolds Number Particle Image Velocimetry Wind Tunnel Laser Light Sheet Reynolds Number Effect 
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    F. Klinge. ”Verfahren zur Bestimmung des Verlaufs einer beliebig geformten Linie im Raum”. Deutsches Zentrum für Luft-und Raumfahrt e.V., Deutsches Patent-und Markenamt, DE 03 08 042 A1.Google Scholar
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    M. Raffel, H. Richard and G.E.A. Meier. ”On the applicability of Background Oriented Optical Schlieren Tomography”. Experiments in Fluids, 2000, pp. 447–481.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • D. Pallek
    • 1
  • F. Klinge
    • 1
  1. 1.Institut für Aerodynamik und StrömungstechnikDeutsches Zentrum für Luft- und RaumfahrtGöttingenGermany

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