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Dynamic Actuation for Delta Wing Post Stall Flow Control

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Book cover New Results in Numerical and Experimental Fluid Mechanics X

Part of the book series: Notes on Numerical Fluid Mechanics and Multidisciplinary Design ((NNFM,volume 132))

Abstract

The manipulation of delta wing flow by active and passive flow control methods is of great interest for increasing the performance (e.g. lift enhancement) of such configurations. This work presents experimental results in the post-stall regime at very high angles of attack (\(\alpha =\) 35–\(45^\circ \)) on a \(65^\circ \) sweptback generic half delta wing configuration (VFE-2 geometry) with sharp leading edge using slot actuators for pulsed blowing along the leading edge. The study comprises results of force, velocity and pressure measurements and substantiates the receptivity of the shear layer for the pulsed excitation. For \(\alpha = 35^\circ \), an actuation at \(F^{+} \approx 2.7\) effects a retardation of vortex breakdown. For \(\alpha = 45^\circ \), the optimum pulse frequency was found at \(F^{+} =\) 1.0–1.5, which leads to the re-establishment of a burst vortex and a significant increase in lift, thus satisfying the aim of enhancing aerodynamic performance.

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Acknowledgments

The authors would like to thank the German Research Association (Deutsche Forschungsgemeinschaft, DFG) for the funding of the project.

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Authors and Affiliations

  1. Institute of Aerodynamics and Fluid Mechanics, Technische Universität München, Boltzmannstr. 15, 85748, Garching, Germany

    Anja Kölzsch, Sophie Blanchard & Christian Breitsamter

Authors
  1. Anja Kölzsch
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  2. Sophie Blanchard
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  3. Christian Breitsamter
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Corresponding author

Correspondence to Anja Kölzsch .

Editor information

Editors and Affiliations

  1. Ins. für Aerodynamik & Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahr, Göttingen, Germany

    Andreas Dillmann

  2. Airbus Deutschland, Bremen, Bremen, Germany

    Gerd Heller

  3. Institut für Aerodynamik und Gasdynamik, Universität Stuttgart, Stuttgart, Germany

    Ewald Krämer

  4. Inst. für Aerodynamik & Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahr, Göttingen, Niedersachsen, Germany

    Claus Wagner

  5. Technische Universität München, Lehrstuhl für Aerodynamik & Strömungsm, Garching, Bayern, Germany

    Christian Breitsamter

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© 2016 Springer International Publishing Switzerland

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Kölzsch, A., Blanchard, S., Breitsamter, C. (2016). Dynamic Actuation for Delta Wing Post Stall Flow Control. In: Dillmann, A., Heller, G., Krämer, E., Wagner, C., Breitsamter, C. (eds) New Results in Numerical and Experimental Fluid Mechanics X. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 132. Springer, Cham. https://doi.org/10.1007/978-3-319-27279-5_72

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  • DOI: https://doi.org/10.1007/978-3-319-27279-5_72

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-27278-8

  • Online ISBN: 978-3-319-27279-5

  • eBook Packages: EngineeringEngineering (R0)

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