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Application of Pressure-Sensitive Paint for Determination of Dynamic Surface Pressures on a 30 Hz Oscillating 2D Profile in Transonic Flow

  • C. Klein
  • W. E. Sachs
  • U. Henne
  • Y. Egami
  • H. Mai
  • V. Ondrus
  • U. Beifuss
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 112)

Summary

Visualization and measurements of aerodynamic effects on a 2D-wing-profile model were conducted using an optical pressure measurement system based on the pressure-sensitive paint (PSP) technique. The PSP technique can be used to obtain absolute pressure distributions on the surface of a model and in addition to evaluate quantitative aerodynamic flow phenomena e.g., shock location, shock-shock interaction, and shock boundary layer interaction, by using scientific grade cameras and image processing techniques. The PSP technique has been used here for investigations of periodic and unsteady flows. In a wind tunnel campaign in the DNW-TWG, a 2D-wing-profile model, which is pitch oscillating at up to 30 Hz, was investigated. The experiment presented here was performed at angles-of-attack α = 1.12° ± 0.6° at Ma = 0.72. With this work the area of application of PSP to dynamic systems where oscillating pressure changes of the order of 1000 Pa have to be measured at rates of up to 100 Hz is demonstrated.

Keywords

Wind Tunnel Suction Side Shock Oscillation EMCCD Camera Shock Boundary Layer Interaction 
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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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • C. Klein
    • 1
  • W. E. Sachs
    • 1
  • U. Henne
    • 1
  • Y. Egami
    • 1
  • H. Mai
    • 1
  • V. Ondrus
    • 2
  • U. Beifuss
    • 2
  1. 1.Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)GöttingenGermany
  2. 2.Institut für ChemieUniversität HohenheimStuttgartGermany

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