Anomalous scaling and universality in hydrodynamic systems with power-law forcing (Articolo in rivista)

Type
Label
  • Anomalous scaling and universality in hydrodynamic systems with power-law forcing (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Alternative label
  • Biferale L., Cencini M., Lanotte A.S., Sbragaglia M., Toschi F. (2004)
    Anomalous scaling and universality in hydrodynamic systems with power-law forcing
    in New journal of physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Biferale L., Cencini M., Lanotte A.S., Sbragaglia M., Toschi F. (literal)
Pagina inizio
  • 37 (literal)
Pagina fine
  • 53,00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 6 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Fisica and INFM, Università 'Tor Vergata', Via della Ricerca Scientifica 1, I-00133 Roma, Italy Center for Statistical Mechanics and Complexity, INFM Roma 1, Italy Dipartimento di Fisica, Università di Roma 'La Sapienza', Piazzale Aldo Moro, 2, I-00185 Roma, Italy Istituto per le Scienze dell'Atmosfera e del Clima, CNR, Str. Prov. Lecce-Monteroni km. 1.200, I-73100 Lecce, Italy INFM UDR Tor Vergata Istituto per le Applicazioni del Calcolo, CNR, Viale del Policlinico 137, I-00161 Roma, Italy (literal)
Titolo
  • Anomalous scaling and universality in hydrodynamic systems with power-law forcing (literal)
Abstract
  • The problem of the interplay between normal and anomalous scaling in turbulent systems stirred by a random forcing with a power-law spectrum is addressed. We consider both linear and nonlinear systems. As for the linear case, we study passive scalars advected by a 2d velocity field in the inverse cascade regime. For the nonlinear case, we review a recent investigation of 3d Navier–Stokes turbulence, and we present new quantitative results for shell models of turbulence. We show that to get firm statements, it is necessary to reach considerably high resolutions due to the presence of unavoidable subleading terms affecting all correlation functions. All findings support universality of anomalous scaling for the small-scale fluctuations. (literal)
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