Lyapunov exponents of heavy particles in turbulence (Articolo in rivista)

Type
Label
  • Lyapunov exponents of heavy particles in turbulence (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2349587 (literal)
Alternative label
  • Jérémie Bec (1); Luca Biferale (2); Guido Boffetta (3); Massimo Cencini (4); Stefano Musacchio (5); Federico Toschi (6) (2006)
    Lyapunov exponents of heavy particles in turbulence
    in Physics of fluids (1994)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Jérémie Bec (1); Luca Biferale (2); Guido Boffetta (3); Massimo Cencini (4); Stefano Musacchio (5); Federico Toschi (6) (literal)
Pagina inizio
  • 091702 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://scitation.aip.org/content/aip/journal/pof2/18/9/10.1063/1.2349587 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 18 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) CNRS UMR6202, Observatoire de la Côte d'Azur, Boite Postale 4229, 06304 Nice Cedex 4, France (2) Department of Physics and INFN, University of Rome \"Tor Vergata,\" Via della Ricerca Scientifica 1, 00133 Roma, Italy (3) Dipartimento di Fisica Generale and INFN, University of Torino, Via Pietro Giuria 1, 10125 Torino, Italy and CNR-ISAC c.Fiume 4, 10133 Torino, Italy (4) INFM-CNR, SMC Dipartimento di Fisica, Università di Roma \"La Sapienza,\" Piazzale A. Moro 2 and ISC-CNR, Via dei Taurini 19, I-00185 Roma, Italy (5) CNRS, INLN, 1361 Route des Lucioles, F-06560 Valbonne, France (6) CNR-IAC, Viale del Policlinico 137, I-00161 Roma, Italy and INFN, Sezione di Ferrara, via G. Saragat 1, I-4410 Ferrara, Italy (literal)
Titolo
  • Lyapunov exponents of heavy particles in turbulence (literal)
Abstract
  • Lyapunov exponents of heavy particles and tracers advected by homogeneous and isotropic turbulent flows are investigated by means of direct numerical simulations. For large values of the Stokes number, the main effect of inertia is to reduce the chaoticity with respect to fluid tracers. Conversely, for small inertia, a counterintuitive increase of the first Lyapunov exponent is observed. The flow intermittency is found to induce a Reynolds number dependency for the statistics of the finite-time Lyapunov exponents of tracers. Such intermittency effects are found to persist at increasing inertia. (c) 2006 American Institute of Physics. (literal)
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