The Boundary Layer on a Sharp Cone in High-Enthalpy Flow

  • P. Germain
  • H. Hornung
Conference paper


The boundary layer on a 5 deg. half-angle cone is studied by measurement of the heat flux distribution and by qualitative flow visualisation. In the laminar layer, heat flux levels are higher in air than in nitrogen because of a larger heat release from oxygen recombination at the wall. By varying the specific reservoir enthalpy in air and N2, and from measurements in CO2, it is found that real-gas effects stabilize the boundary layer.

Key words

Hypervelocity Boundary layer transition Experiment 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • P. Germain
    • 1
  • H. Hornung
    • 1
  1. 1.Graduate Aeronautical LaboratoriesCalifornia Institute of TechnologyUSA

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