Character of evolution if natural disturbances in a supersonic boundary layer on a flat plate
A.D. Kosinov and A.I. Semisynov
Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Pages: 39–44
Abstract
The evolution of natural disturbances in a flat-plate boundary layer is experimentally studied for a Mach number M = 2. To obtain a more detailed pattern of transition in the boundary layer, the measurements are performed both in the longitudinal and normal coordinates. The development of oscillations is analyzed using a statistical approach. It is found that the growth of natural oscillations is linear up to a Reynolds number Reδ = 1100. The amplitude of oscillations at the final stage of linear development of disturbances is approximately 4 %.
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