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1997-04

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/24897

Langevin approach to generate synthetic turbulent flows

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http://dx.doi.org/10.1063/1.869201

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.

Subject

Mecànica de fluids, Turbulència, Hidrodinàmica

Subject (English)

Fluid mechanics, Dynamics, Turbulence

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Ciència dels Materials i Química Física)

Citation

MARTÍ PÉREZ, Arturo C., et al. Langevin approach to generate synthetic turbulent flows. Physics of Fluids. 1997. Vol. 9, num. 4, pags. 1078-1084. ISSN 0021-8979. [consulted: 9 of June of 2026]. Available at: https://hdl.handle.net/2445/24897

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