Abstract
The results of an experimental study of shock train control by a patterned electrical discharge are discussed. A shock wave (SW) generator composed of a symmetric 10° wedge was installed in the test section of SBR-50 M=2 facility. The plasma array based on a Q-DC discharge was arranged on the opposite wall so that the SW originating from the wedge impinged the plasma area. As a result of the SW-plasma interaction, the flowfield was significantly modified over the test section, including an upstream shift of the shock train. Instrumentation included fast schlieren visualization and wall pressure measurements taken from both a multi-channel pressure scanner and fast Kulite sensors. The Kulite transducers were used to measure the transitional effects after switching plasma off and on. The details of the plasma-SW interaction when varying the plasma power are discussed.
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