Skin-friction measurements and computational comparison of swept shock/boundary-layer interactions

A joint experimental and computational study of skin friction in weak-to-strong swept shock wave/turbulent boundary-layer interactions has been carried out. A planar shock wave is generated by a sharp fin at angles of attack α=10 and 16 deg at M ∞=3 and 16 and 20 deg at M ∞=4. Measurements are made using the laser interferometer skin friction (LISF) meter, which optically detects the rate of thinning of an oil film applied to the test surface.