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Analysis of High-Lift Generated Noise via a Hybrid LES/CAA Method

  • Conference paper
New Results in Numerical and Experimental Fluid Mechanics VII

Part of the book series: Notes on Numerical Fluid Mechanics and Multidisciplinary Design ((NNFM,volume 112))

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Summary

The flow field and the acoustic field of a high-lift configuration consisting of a slat and a main wing are numerically investigated by an efficient hybrid LES/CAA method. The flow parameters are Ma = 0.16, Re = 1.4*106, and α= 13 deg. The simulated flow is in good agreement with experimental findings. The turbulent flow structures especially in the slat cove shear layer reveal patterns similar to those observed in a plane shear layer and an impinging jet, respectively. The acoustic analyses identify the slat gap as the origin of tonal and broadband noise ranging from 1 to 3 kHz.

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Author information

Authors and Affiliations

  1. Institute of Aerodynamics, RWTH Aachen University, Wüllnerstraße 5a, 52062, Aachen, Germany

    D. König, S. R. Koh, M. Meinke & W. Schröder

  2. Institute of Aerodynamics and Gasdynamics, University of Stuttgart, Pfaffenwaldring 21, 70550, Stuttgart, Germany

    A. Birkefeld, J. Utzmann & C. D. Munz

Authors
  1. D. König
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  2. S. R. Koh
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  3. M. Meinke
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  4. A. Birkefeld
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  5. J. Utzmann
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  6. C. D. Munz
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  7. W. Schröder
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Editor information

Editors and Affiliations

  1. Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Aerodynamik und Strömungstechnik, Bunsenstraße 10, 37073, Göttingen, Germany

    Andreas Dillmann  & Hans-Peter Kreplin  & 

  2. Airbus Deutschland, Airbusallee 1, 28199, Bremen, Germany

    Gerd Heller

  3. Aerodynamisches Institut und Lehrstuhl für Strömungslehre, RWTH Aachen, Wüllnerstr. 5a, 52062, Aachen, Germany

    Michael Klaas  & Wolfgang Schröder  & 

  4. Institut für Luft- und Raumfahrt, TU Berlin, Marchstraße 12, 10587, Berlin, Germany

    Wolfgang Nitsche

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König, D. et al. (2010). Analysis of High-Lift Generated Noise via a Hybrid LES/CAA Method. In: Dillmann, A., Heller, G., Klaas, M., Kreplin, HP., Nitsche, W., Schröder, W. (eds) New Results in Numerical and Experimental Fluid Mechanics VII. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 112. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14243-7_55

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  • DOI: https://doi.org/10.1007/978-3-642-14243-7_55

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-14242-0

  • Online ISBN: 978-3-642-14243-7

  • eBook Packages: EngineeringEngineering (R0)

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