Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/24897
Title: | Langevin approach to generate synthetic turbulent flows |
Author: | Martí Pérez, Arturo C. Sagués i Mestre, Francesc Sancho, José M. Sancho, José M. |
Keywords: | Mecànica de fluids Turbulència Hidrodinàmica Fluid mechanics Dynamics Turbulence |
Issue Date: | Apr-1997 |
Publisher: | American Institute of Physics |
Abstract: | We present an analytical scheme, easily implemented numerically, to generate synthetic Gaussian turbulent flows by using a linear Langevin equation, where the noise term acts as a stochastic stirring force. The characteristic parameters of the velocity field are well introduced, in particular the kinematic viscosity and the spectrum of energy. As an application, the diffusion of a passive scalar is studied for two different energy spectra. Numerical results are compared favorably with analytical calculations. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1063/1.869201 |
It is part of: | Physics of Fluids, 1997, vol. 9, num. 4, p. 1078-1084 |
URI: | http://hdl.handle.net/2445/24897 |
Related resource: | http://dx.doi.org/10.1063/1.869201 |
ISSN: | 0021-8979 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Ciència dels Materials i Química Física) |
Files in This Item:
File | Description | Size | Format | |
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114554.pdf | 296.03 kB | Adobe PDF | View/Open |
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