This article is cited in 18 papers

Role of localized streamwise structures in the process of transition to turbulence in boundary layers and jets (review)

V. V. Kozlov^a, G. R. Grek^a, L. L. Lofdahl^b, V. G. Chernorai^b, M. V. Litvinenko<sup>b

a</sup> Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090
^b Chalmers University of Technology, S-412 96, Gothenburg, Sweden

Abstract: Results of the analysis of specific features of the laminar–turbulent transition in various subsonic shear flows, which are caused by localized stationary and nonstationary streamwise structures, are presented. One mechanism of flow turbulization is considered, which involves the origination and development of secondary high-frequency disturbances in regions of flow instability generated by its modulation by streamwise structures. It is shown that this process is identical in different types of shear flows (boundary layers and jets) and in flows of the type of localized streamwise structures (stationary or nonstationary).

UDC: 532.526

Received: 25.10.2001

 English version: Journal of Applied Mechanics and Technical Physics, 2002, 43:2, 224–236

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