On the Spatial Structure of Disturbances in Boundary Layer Subharmonic Transition

Aerogasdynamic investigations at the institute of theoretical and applied mechanics in the last decade

“…The stabilizing action of a single small two-dimensional surface roughness in a laminar-turbulent transition in a boundary layer was discovered in [286] and supported experimentally in [35] (the surface roughness usually turbulizes the flow). This effect was explained by the interaction of Tollmien-Schlicl,ting waves generated in a boundary layer with the waves of this kind generated in the neighborhood of the roughness and, as a result, their annihilation occurred.…”

“…A comprehensive experimental study of the receptivity of a flat boundary layer relative to acoustic disturbances was performed in [35,36], and that of a three-dimensional layer under the action of three-dimensional vibrations, surface roughness, and in scattering the acoustic wave on localized vibrations were considered in [37,38].…”