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Title: Hydrodynamic fluctuations in the Kolmogorov flow: Linear regime
Authors: BENA, Ioana 
Baras, F.
Mansour, M.M.
Issue Date: 1999
Source: PHYSICAL REVIEW E, 59(5). p. 5503-5510
Abstract: The Landau-Lifshitz fluctuating hydrodynamics is used to study the statistical properties of the linearized Kolmogorov flow. The relative simplicity of this flow allows a detailed analysis of the fluctuation spectrum from near equilibrium regime up to the vicinity of the first convective instability threshold. It is shown that in the long time limit the flow behaves as an incompressible fluid, regardless of the value of the Reynolds number. This is not the case for the short time behavior where the incompressibility assumption leads in general to a wrong form of the static correlation functions, except near the instability threshold. The theoretical predictions are confirmed by numerical simulations of the full nonlinear fluctuating hydrodynamic equations. [S1063-651X(99)09905-5].
Notes: Limburgs Univ Ctr, B-3590 Diepenbeek, Belgium. Free Univ Brussels, Ctr Nonlinear Phenomena & Complex Syst, B-1050 Brussels, Belgium.Bena, I, Limburgs Univ Ctr, Univ Campus, B-3590 Diepenbeek, Belgium.
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ISI #: 000080382900011
Type: Journal Contribution
Validations: ecoom 2000
Appears in Collections:Non-affiliated authors

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