Multi-time multi-scale correlation functions in hydrodynamic turbulence (Articolo in rivista)

Type

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

Label

• Multi-time multi-scale correlation functions in hydrodynamic turbulence (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

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

• 10.1063/1.3623466 (literal)

Alternative label

• Biferale L., Calzavarini E., Toschi F. (2011)
  Multi-time multi-scale correlation functions in hydrodynamic turbulence
  in Physics of fluids (1994)
  (literal)

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

• Biferale L., Calzavarini E., Toschi F. (literal)

Pagina inizio

• 085107 (literal)

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

• 23 (literal)

Rivista

• Physics of fluids (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• 1. Univ Lille 1 Sci & Technol, Int Collaborat Turbulence Res, Lab Mecan Lille, CNRS,UMR 8107, F-59650 Villeneuve Dascq, France 2. Polytech Lille, F-59650 Villeneuve Dascq, France 3. Univ Roma Tor Vergata, Int Collaborat Turbulence Res, Dept Phys, I-00133 Rome, Italy 4. Univ Roma Tor Vergata, INFN, I-00133 Rome, Italy 5. Eindhoven Univ Technol, Dept Phys, Int Collaborat Turbulence Res, NL-5600 MB Eindhoven, Netherlands 6. Eindhoven Univ Technol, Dept Math & Comp Sci, NL-5600 MB Eindhoven, Netherlands 7. Eindhoven Univ Technol, JM Burgers Ctr Fluid Dynam, NL-5600 MB Eindhoven, Netherlands 8. CNR, IAC, I-00185 Rome, Italy (literal)

Titolo

• Multi-time multi-scale correlation functions in hydrodynamic turbulence (literal)

Abstract

• High Reynolds numbers Navier-Stokesequations are believed to break self-similarity concerning both spatial and temporal properties: correlation functions of different orders exhibit distinct decorrelation times and anomalous spatial scaling properties. Here, we present a systematic attempt to measure multi-time and multi-scale correlations functions, by using high Reynolds numbers numerical simulations of fully homogeneous and isotropic turbulent flow. The main idea is to set-up an ensemble of probing stations riding the flow, i.e., measuring correlations in a reference frame centered on the trajectory of distinct fluid particles (the quasi-Lagrangian reference frame introduced by Belinicher and L'vov [Sov. Phys. JETP 66, 303 (1987)]). In this way, we reduce the large-scale sweeping and measure the non-trivial temporal dynamics governing the turbulent energy transfer from large to small scales. We present evidences of the existence of the dynamic multiscaling properties of turbulence - first proposed by L'vov et al. [Phys. Rev. E 55, 7030 (1997)] - in which multi-time correlation functions are characterized by an infinite set of characteristic times. (literal)

Prodotto di

• Dinamica dei sistemi complessi fluidodinamici e biologici (MD.P02.002.001) (Modulo)
• Istituto per le applicazioni del calcolo \"Mauro Picone\" (IAC) (Istituto)

Autore CNR

• FEDERICO TOSCHI (Persona)
• Luca BIFERALE (Unità di personale esterno)

Incoming links:

Prodotto

• Istituto per le applicazioni del calcolo \"Mauro Picone\" (IAC) (Istituto)
• Dinamica dei sistemi complessi fluidodinamici e biologici (MD.P02.002.001) (Modulo)

Autore CNR di

• FEDERICO TOSCHI (Persona)
• Luca BIFERALE (Unità di personale esterno)

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

• Physics of fluids (Rivista)