Statistics of two-particle dispersion in two-dimensional turbulence (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Statistics of two-particle dispersion in two-dimensional turbulence (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

Alternative label

• Boffetta G., Sokolov I.M. (2002)
  Statistics of two-particle dispersion in two-dimensional turbulence
  in Physics of fluids (1994)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Boffetta G., Sokolov I.M. (literal)

Pagina inizio

• 3224 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 14 (literal)

Rivista

• Physics of fluids (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Titolo

• Statistics of two-particle dispersion in two-dimensional turbulence (literal)

Abstract

• We investigate Lagrangian relative dispersion in direct numerical simulation of two-dimensional inverse cascade turbulence. The analysis is performed by using both standard fixed time statistics and an exit time approach. The latter allows a more precise determination of the Richardson constant which is found to be $g \simeq 4$ with a possible weak finite-size dependence. Our results show only small deviations with respect to the original Richardson's description in terms of diffusion equation. These deviations are associated with the long-range correlated nature of the particles' relative motion. The correlation, or persistence, parameter is measured by means of a Lagrangian ``turning point'' statistics. (literal)

Prodotto di

• Institute of atmospheric sciences and climate (ISAC) (Istituto)

Incoming links:

Prodotto

• Institute of atmospheric sciences and climate (ISAC) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physics of fluids (Rivista)