Acceleration of heavy and light particles in turbulence: Comparison between experiments and direct numerical simulations (Articolo in rivista)

Type

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

Label

• Acceleration of heavy and light particles in turbulence: Comparison between experiments and direct numerical simulations (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

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

• 10.1016/j.physd.2008.01.016 (literal)

Alternative label

• Volk R., Calzavarini E., Verhille G., Lohse D., Mordant N., Pinton J.-F., Toschi F. (2008)
  Acceleration of heavy and light particles in turbulence: Comparison between experiments and direct numerical simulations
  in Physica. D, Nonlinear phenomena (Print)
  (literal)

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

• Volk R., Calzavarini E., Verhille G., Lohse D., Mordant N., Pinton J.-F., Toschi F. (literal)

Pagina inizio

• 2084 (literal)

Pagina fine

• 2089 (literal)

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

• 237 (literal)

Rivista

• Physica. D, Nonlinear phenomena (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• Laboratoire de Physique, de l'E ?cole normale supe ?rieure de Lyon, CNRS UMR5672, 46 Alle ?e d'Italie, 69007 Lyon, France Faculty of Science, J.M. Burgers Centre for Fluid Dynamics, and Impact-Institute, University of Twente, 7500 AE Enschede, The Netherlands c Laboratoire de Physique, Statistique de l'E ?cole normale supe ?rieure de Paris, CNRS UMR8550, 24 rue Lhomond, 75005 Paris, France Istituto per le Applicazioni del Calcolo CNR, Viale del Policlinico 137, 00161 Roma, Italy INFN, Sezione di Ferrara, Via G. Saragat 1, I-44100 Ferrara, Italy (literal)

Titolo

• Acceleration of heavy and light particles in turbulence: Comparison between experiments and direct numerical simulations (literal)

Abstract

• We compare experimental data and numerical simulations for the dynamics of inertial particles with finite density in turbulence. In the experiment, bubbles and solid particles are optically tracked in a turbulent flow of water using an Extended Laser Doppler Velocimetry technique. The probability density functions (PDF) of particle accelerations and their auto-correlation in time are computed. Numerical results are obtained from a direct numerical simulation in which a suspension of passive pointwise particles is tracked, with the same finite density and the same response time as in the experiment. We observe a good agreement for both the variance of acceleration and the autocorrelation time scale of the dynamics; small discrepancies on the shape of the acceleration PDF are observed. We discuss the effects induced by the finite size of the particles, not taken into account in the present numerical simulations. (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 (Unità di personale interno)

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 (Unità di personale interno)

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

• Physica. D, Nonlinear phenomena (Rivista)