Philip Andrews, Philip Lax, Sergey B Leonov

DOI Number XXX-YYY-ZZZ

Conference Number HiSST-2022-393

The results of an experimental study of shock-dominated flow controlled by a patterned electrical
discharge are discussed. A solid wedge shock wave (SW) generator was installed in test section of M=4
wind tunnel. The Q-DC filamentary electrical discharge was arranged on the opposite wall so that the
SW originating from the wedge impinged the area partially occupied with the plasma filaments arranged
in a flow-wise direction with either a row of three filaments or only a single central filament. 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. The details of the plasma-SW interaction, including the transitional
effects, are explored with wall pressure measurements, schlieren imaging and Mie scattering
visualization. The physics of the flow control effect is discussed.

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In Categories: 1.Events, High-Speed Aerodynamics and Aerothermodynamics, HiSST 2022
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