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Using CryoTSP as a Tool for Transition Detection and Instability Examination at High Reynolds Numbers

  • U. Fey
  • Y. Egami
  • C. Klein
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM) book series (NNFM, volume 96)

Abstract

The method of temperature-sensitive paint (TSP) adapted to cryogenic wind tunnels, i.e. cryoTSP is used to detect the natural laminar-turbulent transition of boundary layers in high speed flows. Besides pure transition detection, cryoTSP images provide information on the transition zone, the characteristics of transition, and on the type of instability. A method is proposed to determine the transition zone out of cryoTSP result images for 2D-wings, where the transition process is caused by Tollmien-Schlichting instabilities.

Keywords

Wind Tunnel Transition Location Transition Detection Boundary Layer Transition Laminar Separation Bubble 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    Y. Iijima et al. ”Optimization of Temperature-Sensitive Paint Formulation for Large-Scale Cryogenic Wind Tunnels”, In 20 International Congress on Instrumentation in Aerospace Simulation Facilities (ICIASF). Göttingen, Germany, August 25.-29., 2003, pp 70–77.Google Scholar
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    U. Fey et al. ”Transition Detection by Temperature Sensitive Paint at Cryogenic Temperatures in the European Transonic Windtunnel (ETW)”, 20 International Congress on Instrumentation in Aerospace Simulation Facilities (ICIASF). Gottingen, Germany, August 25.-29., 2003, pp. 77–88.Google Scholar
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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • U. Fey
    • 1
  • Y. Egami
    • 1
  • C. Klein
    • 1
  1. 1.Deutsches Zentrum für Luft-und Raumfahrt e.V. (DLR)GöttingenGermany

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