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Stochastic generation of homogeneous isotropic turbulence with well-defined-spectra
Careta Pons, Agustí; Sagués i Mestre, Francesc; Sancho, José M.
Universitat de Barcelona
A precise and simple computational model to generate well-behaved two-dimensional turbulent flows is presented. The whole approach rests on the use of stochastic differential equations and is general enough to reproduce a variety of energy spectra and spatiotemporal correlation functions. Analytical expressions for both the continuous and the discrete versions, together with simulation algorithms, are derived. Results for two relevant spectra, covering distinct ranges of wave numbers, are given.
26-07-2011
Física matemàtica
Física estadística
Termodinàmica
Sistemes dinàmics diferenciables
Dinàmica de fluids
Mathematical physics
Statistical physics
Thermodynamics
Differentiable dynamical systems
Fluid dynamics
(c) The American Physical Society, 1993
Artículo
The American Physical Society
         

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