Seventh International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP7
SENSITIVITY OF A SHOCK-BOUNDARY LAYER INTERACTION TO GEOMETRIC PERTURBATIONS
pages 1-6
DOI: 10.1615/TSFP7.1850
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.