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Particle Dispersion Processes in Two-dimensional Turbulence: a Comparison with 2-d Kinematic Simulation. : Volume 14, Issue 2 (28/03/2007)

By Castilla, R.

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Book Id: WPLBN0004019812
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: Particle Dispersion Processes in Two-dimensional Turbulence: a Comparison with 2-d Kinematic Simulation. : Volume 14, Issue 2 (28/03/2007)  
Author: Castilla, R.
Volume: Vol. 14, Issue 2
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Redondo, J. M., Gámez-Montero, P. J., Babiano, A., & Castilla, R. (2007). Particle Dispersion Processes in Two-dimensional Turbulence: a Comparison with 2-d Kinematic Simulation. : Volume 14, Issue 2 (28/03/2007). Retrieved from

Description: LABSON, Dpt. of Fluid Mechanics, U.P.C., Spain. We study numerically the comparison between Lagrangian experiments on turbulent particle dispersion in 2-D turbulent flows performed, on the one hand, on the basis of direct numerical simulations (DNS) and, on the other hand, using kinematic simulations (KS). Eulerian space-time structure of both DNS and KS dynamics are not comparable, mostly due to the absence of strong coherent vortices and advection processes in the KS fields. The comparison allows to refine past studies about the contribution of non-homogeneous space-time 2-D Eulerian structure on the turbulent absolute and relative particle dispersion processes. We particularly focus our discussion on the Richardson's regime for relative dispersion.

Particle dispersion processes in two-dimensional turbulence: a comparison with 2-D kinematic simulation.

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