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New Results in Numerical and Experimental Fluid Mechanics IX pp 255–262Cite as

Numerical Investigations of a Back-Flow Flap for Dynamic Stall Control

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Part of the book series: Notes on Numerical Fluid Mechanics and Multidisciplinary Design ((NNFM,volume 124))

Abstract

Numerical investigations with the DLR TAU Code demonstrate that an actuated back-flow flap on the suction side of an OA209 helicopter airfoil is able to improve the dynamic stall behavior. When the flow begins to stall, the flap is extended which interferes with the back-flow. This weakens the dynamic stall vortex and consequently the peak in the pitching moment peak is reduced.

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Authors and Affiliations

  1. German Aerospace Center (DLR), Institute of Aerodynamics and Flow Technology, Bunsenstraße 10, 37073, Göttingen, Germany

    K. Kaufmann, A. D. Gardner & K. Richter

Authors
  1. K. Kaufmann
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  2. A. D. Gardner
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  3. K. Richter
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Corresponding author

Correspondence to K. Kaufmann .

Editor information

Editors and Affiliations

  1. Institut für Aerodynamik und Strömungstechnik, German Aerospace Center (DLR), Göttingen, Germany

    Andreas Dillmann

  2. Airbus Deutschland, Bremen, Germany

    Gerd Heller

  3. Institut für Aerodynamik und Gasdynamik, University of Stuttgart, Stuttgart, Germany

    Ewald Krämer

  4. Deutsches Zentrum für Luft-und Raumfahrt (DLR), Institut für Aerodynamik und Strömungstechnik, Göttingen, Germany

    Hans-Peter Kreplin

  5. Institut für Luft- und Raumfahrt, TU Berlin, Berlin, Germany

    Wolfgang Nitsche

  6. Institut für Aerodynamik und Gasdynamik, University of Stuttgart, Stuttgart, Germany

    Ulrich Rist

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© 2014 Springer International Publishing Switzerland

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Kaufmann, K., Gardner, A.D., Richter, K. (2014). Numerical Investigations of a Back-Flow Flap for Dynamic Stall Control. In: Dillmann, A., Heller, G., Krämer, E., Kreplin, HP., Nitsche, W., Rist, U. (eds) New Results in Numerical and Experimental Fluid Mechanics IX. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 124. Springer, Cham. https://doi.org/10.1007/978-3-319-03158-3_26

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  • DOI: https://doi.org/10.1007/978-3-319-03158-3_26

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-03157-6

  • Online ISBN: 978-3-319-03158-3

  • eBook Packages: EngineeringEngineering (R0)

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