Application of the spectral approach to the analysis of laser visualization of the boundary layer on a flat plate
Yu.V. Gromyko, I.S. Tsyryulnikov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: boundary layer, laminar-turbulent transition, laser visualization, spectral analysis, PIV
Abstract
Data on the structure of seeding a flow in a supersonic wind tunnel with electric arc heating of the test gas by particles are reported. Velocity profiles near the plate surface are obtained. It is shown that the spectral characteristics of particle seeding inhomogeneity depends on the Reynolds number and flow regime. The possibility of identifying the anisotropic component of the particle distribution inhomogeneity field in the laminar boundary layer on the plate is demonstrated.
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