Experiments on Shock-Wave/Boundary-Layer Interactions Produced by Two-Dimensional Ramps and Three-Dimensional Obstacles

  • J. Delery
  • M.-C. Coet

Summary

Experiments on shock-wave/boundary-layer interactions have been executed on a two-dimensional ramp at Mach numbers 10 and 5 and on a three-dimensional obstacle at Mach number 10. Reynolds number effect has been examined for interactions at Mach 5. In order to reproduce the ratio of the wall temperature to the recovery temperature of the real flight the model could be cooled by circulation of liquid nitrogen. The flow produced have been investigated by means of schlieren photographs, surface flow visualizations, thermosensitive painting, surface heat transfer and surface pressure measurements.

Keywords

Vortex Nickel Convection Crest Liquefaction 

Notations

Cp

surface pressure coefficient (defined in the text).

L

distance between the plate leading edge and the ramp or obstacle origin.

M

Mach number.

Pw

surface static pressure

Pst

stagnation pressure.

Re

free stream flow unit Reynolds number.

ReL

Reynolds number computed with free stream conditions and L.

Sst

Stanton number.

Tr

recovery temperature.

Tw

wall temperature.

Tst

stagnation temperature.

U

velocity.

X, Y

coordinate system defined in Fig. 15.

β

ramp or wedge angle.

Ψ

obstacle sweep angle.

ρ

density.

designates free stream conditions.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • J. Delery
    • 1
  • M.-C. Coet
    • 1
  1. 1.Office National d’Etudes et de Recherches Aérospatiales (ONERA)ChatillonFrance

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