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Seventh International Symposium on Turbulence and Shear Flow Phenomena
July, 28-31, 2011, Ottawa Convention Centre, Ottawa, Canada

DOI: 10.1615/TSFP7

SENSITIVITY OF A SHOCK-BOUNDARY LAYER INTERACTION TO GEOMETRIC PERTURBATIONS

pages 1-6
DOI: 10.1615/TSFP7.1850
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ABSTRACT

2D Particle Image Velocimetry (PIV) was used to study the sensitivity of the shock-boundary layer interaction (SBLI) generated by a small 20° compression ramp in a low aspect ratio continuously operated wind tunnel. A PIV survey of the unperturbed case was taken. The size of the wedge influenced the interaction, which was weaker than that observed in the case of a large compression wedge. Geometric perturbations were introduced upstream of the compression wedge on the opposite wall. Significant changes were observed in the interaction zone, with the system sensitivity a strong function of position in the interaction.

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