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Detached Eddy Simulation of Separated Flow on a High-Lift Device and Noise Propagation

  • C. Lübon
  • M. Kessler
  • S. Wagner
  • E. Krämer
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 97)

Abstract

In the framework of the German research project FREQUENZ, a joint effort of industry, research establishment and universities has been undertaken to study the effect of design variations on aeroacoustics of a simplified high lift configuration. The flow past an airfoil with small trailing edge devices (MiniTED) was investigated numerically for the case of a generic landing configuration. Because of the turbulent and separated flow character behind the high lift device a hybrid RANS-LES approach was chosen to investigate the flow phenomena. Furthermore, the noise in the turbulent flow field was investigated by evaluating the pressure distribution. As a large measurement campaign has been undertaken within FREQUENZ, it is possible to validate the aerodynamic and the aeroacoustic results.

Keywords

Particle Image Velocimetry Wind Tunnel Large Eddy Simulation Lift Coefficient Particle Image Velocimetry Measurement 
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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References

  1. Drela, M.: Two-Dimensional Transonic Aerodynamic Design and Analysis Using the Euler Equations, Massachusetts Institute of Technology, Cambridge, Massachusetts, Gas Turbine Laboratory Report No. 187 (1986)Google Scholar
  2. Ffowcs Williams, J.E., Hawkings, D.L.: Sound generation by turbulence and surfaces in arbitrary motion. Philosophical Transaction of the Royal Society of London, Series A 264, 321–342 (1969)zbMATHCrossRefGoogle Scholar
  3. Kroll, N., Eisfeld, B., Bleecke, H.M.: FLOWer. Notes on Numerical Fluid Mechanics, pp. 58–68. Vieweg Verlag, Braunschweig (1999)Google Scholar
  4. Lighthill, M.J.: On sound generated aerodynamically. I. General theory. Proc. Roy. Soc. 211(A), 564–587 (1952)zbMATHCrossRefMathSciNetGoogle Scholar
  5. Raddatz, J., Fassbender, J.K.: Block Structured Navier-Stokes Solver FLOWer. In: MEGAFLOW - Numerical Flow Simulation for Aircraft Design. Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM), pp. 27–44 (2005), ISBN 3-540-24383-6Google Scholar
  6. Schlichting, H.: Boundary layer theory, p. 566. McGraw-Hill, New York (1960)zbMATHGoogle Scholar
  7. Shur, M., et al.: Detached-Eddy Simulation of an Airfoil at High Angle of Attack. In: 4th Int. Symp. Eng. Turb. Modelling and Measurements, Corsica (1999)Google Scholar
  8. Spalart, P.R., Allmaras, S.R.: A one-equation turbulence model for aerodynamic flows, La Recherche Aerospatiale, pp. 5–21 (1994)Google Scholar
  9. Wilcox, D.: Turbulence Modelling for CFD, DCW Industries (1998)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • C. Lübon
    • 1
  • M. Kessler
    • 1
  • S. Wagner
    • 1
  • E. Krämer
    • 1
  1. 1.IAGGermany

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