Evolution of localized boundary-layer perturbations under conditions of the laminar-turbulent transition (review)
A.V. Dovgal, M.M. Katasonov, V.V. Kozlov, A.M. Pavlenko
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: boundary layer, hydrodynamic stability, transition to turbulence, localized flow disturbances
Abstract
A review of experimental results obtained with the participation of the authors of this article, as well as in other studies on the generation and development of localized perturbations in two- and three-dimensional boundary layers, is presented. The accompanying wave phenomena and the contribution due to the spatial-temporal deformations of the velocity field of the initial laminar flow to its transition into turbulent state in boundary layers on the surface of aircraft, including small unmanned aerial vehicles (UAVs), are discussed.
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