Formation of a separation vortex in the vicinity of a dihedral angular configuration at Мoo = 2,27 and a less than or equal to 6°
A.I. Maksimov, I.N. Kavun
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: 2-D air intake, dihedral angle, separation vortex, vortex core, secondary vortex, streamlines, pressure distribution, local Mach number
Abstract
The article considers the development of a near-wall separation vortex, arising at a supersonic flow around the external dihedral angle due to the pressure drop between its faces, in the range of angles of attack α = 0.5° - 6°. The processes of origin and development of separation and secondary vortices at the angle increase are investigated in detail. Particular attention is paid to the flow structure change in the vortex location zone. A clear violation of the flow self-similarity in the front part of the model in the zone of vortex system formation is shown.
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