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High Incidence Buffet Flow over Fighter Type Aircraft

  • Arne Schmid
  • Christian Breitsamter
Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 87)

Summary

Fin buffet loads of a fighter type delta canard configuration with 50 ° swept wing were measured at sideslip angles of β = 0 °, 5 ° and 10 ° covering the full angle of attack range up to α = 90 °. The RMS-values of the fin surface pressure fluctuations and related power spectral densities are presented and used to discuss the influence of various flow features. A known relation based on wing sweep angle and angle of attack for the dominant frequency associated with helical vortex breakdown showed good agreement with measured frequencies at β = 0 ° and β = 5 ° while at β = 10 ° holds only for the windward side.

Keywords

Power Spectral Density Windward Side Vortex Breakdown Sideslip Angle Lead Edge Vortex 
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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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Arne Schmid
    • 1
  • Christian Breitsamter
    • 1
  1. 1.Lehrstuhl für Fluidmechanik (FLM)Technische Universität MtinchenGarchingGermany

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