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Journal of Applied Mechanics and Technical Physics

2021 year, number 3

Stability of Spatially Periodic and Time-Modulated Local Separated Flows

A. V. Boiko, A. V. Dovgal, V. V. Kozlov, A. M. Sorokin
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Keywords: laminar flow separation, flow modulation in space and time, hydrodynamic instability, transition to turbulence


A review of results obtained in recent years by the authors in studying the stability of flows with separation of the laminar boundary layer under the condition of flow modulation in space and time is presented. These results provide an idea about the influence of periodic inhomogeneities of the separation region on the development of its hydrodynamic disturbances and the transition to the turbulent state near the body surface in a low-velocity air flow.