Experimental Investigation of Two Hypersonic Shock/Turbulent Boundary-Layer Interactions

What is it about?

Two cases of shock wave/boundary layer interactions (one attached and one fully separated) were studied in hypersonic flow by means of particle image velocimetry (PIV). We present the first turbulence data set for hypersonic interactions. Obtaining reliable turbulence data in hypersonic wall-bound flows is challenging. We discuss the particle response and its influence on the data quality in detail. We show that the separation state has a strong influence on the amplification of turbulence and the relaxation of the boundary layer, as well as turbulence anisotropy across the interaction.

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