This article is cited in 3 papers

Critical Reynolds numbers in plane channels with sudden expansion at the entry

S. A. Karskanov, A. M. Lipanov

Institute of Applied Mechanics, Ural Division of the Russian Academy of Sciences, ul. Baramzinoi 34, Izhevsk, 426067

Abstract: A method for the numerical solution of fluid dynamics equations is proposed. The evolution of the structure of the laminar flow with increasing Reynolds number and its behavior at the critical Reynolds number Recris analyzed. Various flow modes at $\mathrm{Re}=\mathrm{Re}_{\text{cr}}$ are discussed.

Key words: changing structure of a laminar flow, turbulence, Reynolds number, numerical solution of fluid dynamics equations, separation zone.

UDC: 519.634

Received: 26.01.2009
Revised: 12.01.2010

 English version: Computational Mathematics and Mathematical Physics, 2010, 50:7, 1195–1204

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