My senior project was to examine the effects of sonic counterflow injected at the leading edge of a test article in a supersonic freestream. The hypothesis was that displacing the shock wave away from the leading edge of the test article would decrease the drag on the object, and more importantly decrease the temperature at the tip by moving oblique shockwaves away from the tip of a sharp feature. We were able to demonstrate shockwave displacement experimentally, which showed good agreement with CFD simulations done in Ansys.
Jack Schomer 