Behavior of pressure and heat transfer in sharp fin-induced turbulent interactions

Abstract

An experimental study has been performed of sharp fin-induced shock wave/turbulent boundary-layer interactions at Mach 5 under moderately cooled wall conditions. The experimental data include mean surface pressure and heat transfer rate distributions for fin angles of attack of 6, 8, 10, 12, 14, and 16 deg. Data were acquired in spanwise and conical coordinate systems to assess the behavior of the surface properties. Although the surface pressure distributions collapse in conical coordinates, the heat transfer distributions do not. Instead, the heat transfer was found to be nearly constant along rays from a virtual conical origin determined from the pressure distributions.