INTERACTION OF A SHOCK WAVE WITH A VORTEX SYSTEM AT MACH NUMBER M = 2.27
A.I. Maksimov, I.N. Kavun
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Keywords: vortex system, boundary layer, shock wave, interaction, dihedral model, limiting streamline, experiment, numerical simulation
Abstract
The interaction of a plane oblique shock wave with a vortex system arising from flow separation at the edge of a dihedral model with an opening angle of 270° is examined. The shock generator, which is a thin plate, and the model are positioned at the same angle of attack of 16°. A downstream-expanding separation vortex is generated by the pressure difference between the upper and side faces of the model, while the shock wave incident from the generator causes extensive boundary-layer separation on the surface of the side face. The complex interaction between the shock-induced separated flow and the stalled flow leads to the formation of a cylindrical vortex detached from the surface.
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