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Application of pressure-sensitive paint for determination of the pressure field and calculation of the forces and moments of models in a wind tunnel

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Abstract

The visualization and measurements of aerodynamic effects on a 3D aircraft model were conducted using an optical pressure measurement system, based on the pressure-sensitive paint (PSP) technique. PSP technology provides a good understanding of the flow around the wind tunnel model. The PSP technique can be used to carry out absolute pressure measurements on a surface of the model and to determine additional aerodynamic data using scientific-grade cameras and image processing techniques. Surface pressures from the top, bottom, left, and right viewing directions were obtained using the DLR-PSP system on the entire surface, which can be observed by eight CCD cameras. Finally, the measured pressures can be integrated to calculate the forces and moments of the complete model, or parts thereof.

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Acknowledgements

We would like to thank EADS (München, MT 634) and DNW (Amsterdam, HST transonic wind tunnel) for their support. The authors would like to thank in particular Gerhard Wolfrum and Wolfgang Schwarz from EADS and Leo de Haij from DNW-HST for their fruitful discussions, ideas, and assistance.

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Authors and Affiliations

  1. Institute of Aerodynamics and Flow Technology, DLR Göttingen, Bunsenstr. 10, 37073, Göttingen, Germany

    Christian Klein, Rolf H. Engler, Ulrich Henne & Werner E. Sachs

Authors
  1. Christian Klein
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  2. Rolf H. Engler
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  3. Ulrich Henne
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  4. Werner E. Sachs
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Correspondence to Christian Klein.

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Klein, C., Engler, R.H., Henne, U. et al. Application of pressure-sensitive paint for determination of the pressure field and calculation of the forces and moments of models in a wind tunnel. Exp Fluids 39, 475–483 (2005). https://doi.org/10.1007/s00348-005-1010-8

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  • DOI: https://doi.org/10.1007/s00348-005-1010-8

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