Experimental and Numerical Investigations of Shock/Turbulent Boundary Layer Interaction on a Double Ramp Configuration

In the presented work the influence of the new defined parameter d = D/δ on the shock system of a double ramp configuration was investigated, with D describing the distance between the two ramp kinks. Oil the basis of the experimental and numerical investigations the functional dependency of the most important parameter of the Free Interaction Concept, the upstremn interaction length l 0 on the parameter d, could clearly be shown. Therefore an enlargement of the free interaction concept is suggested with respect to the double ramp parameter d. Moreover, through the investigations of the flat plate/double ramp configuration a critical minimum of the first ramp length was found for the investigated R/m-ranges, to realise the wished two shock compression.