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)


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.


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