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Universal intermittent properties of particle trajectories in highly turbulent flows (Articolo in rivista)

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Universal intermittent properties of particle trajectories in highly turbulent flows (Articolo in rivista) (literal)

Anno

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Alternative label

Arneodo, A; Benzi, R; Berg, J; Biferale, L; Bodenschatz, E; Busse, A; Calzavarini, E; Castaing, B; Cencini, M; Chevillard, L; Fisher, RT; Grauer, R; Homann, H; Lamb, D; Lanotte, AS; Leveque, E; Luthi, B; Mann, J; Mordant, N; Muller, WC; Ott, S; Ouellette, (2008)
Universal intermittent properties of particle trajectories in highly turbulent flows
in Physical review letters (Print)
(literal)

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

Arneodo, A; Benzi, R; Berg, J; Biferale, L; Bodenschatz, E; Busse, A; Calzavarini, E; Castaing, B; Cencini, M; Chevillard, L; Fisher, RT; Grauer, R; Homann, H; Lamb, D; Lanotte, AS; Leveque, E; Luthi, B; Mann, J; Mordant, N; Muller, WC; Ott, S; Ouellette, (literal)

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\"[Arneodo, A.; Castaing, B.; Chevillard, L.; Leveque, E.; Roux, S. G.] Ecole Normale Super Lyon, Phys Lab, F-69007 Lyon, France; [Benzi, R.; Biferale, L.] Univ Roma Tor Vergata, I-00133 Rome, Italy; [Benzi, R.; Biferale, L.] Ist Nazl Fis Nucl, I-00133 Rome, Italy; [Berg, J.; Mann, J.; Ott, S.] DTU, Wind Energy Dept Riso Natl Lab, DK-4000 Roskilde, Denmark; [Bodenschatz, E.; Xu, H.] Max Planck Inst Dynam & Self Org, I-00133 Rome, Italy; [Busse, A.; Mueller, W. -C.] Max Planck Inst Plasma Phys, D-8046 Garching, Germany; [Calzavarini, E.] Univ Twente, Dept Appl Phys, NL-7500 AE Enschede, Netherlands; [Cencini, M.] Univ Roma La Sapienza, SMC Dipartimento Fis, INFM, CNR, I-00185 Rome, Italy; [Fisher, R. T.; Lamb, D.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA; [Grauer, R.; Homann, H.] Ruhr Univ Bochum, Inst Theoret Phys 1, D-44780 Bochum, Germany; [Lanotte, A. S.] INFN, I-73100 Lecce, Italy; [Lanotte, A. S.] CNR ISAC, I-00133 Rome, Italy; [Luethi, B.] ETH, IFU, Zurich, Switzerland; [Mordant, N.] Ecole Normale Super, CNRS, Phys Stat Lab, F-75231 Paris 05, France; [Ouellette, N. T.] Haverford Coll, Haverford, PA 19041 USA; [Pope, S. B.] Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA; [Toschi, F.] CNR, Ist Applicaz Calcolo, I-00161 Rome, Italy; [Toschi, F.] Ist Nazl Fis Nucl, Sezione Ferrara, I-44100 Ferrara, Italy; [Yeung, P. K.] Georgia Inst Technol, Sch Aerosp Engn, Atlanta, GA 30332 USA (literal)

Titolo

Universal intermittent properties of particle trajectories in highly turbulent flows (literal)

Abstract

We present a collection of eight data sets from state-of-the-art experiments and numerical simulations on turbulent velocity statistics along particle trajectories obtained in different flows with Reynolds numbers in the range Rlambda[is-an-element-of][120:740]. Lagrangian structure functions from all data sets are found to collapse onto each other on a wide range of time lags, pointing towards the existence of a universal behavior, within present statistical convergence, and calling for a unified theoretical description. Parisi-Frisch multifractal theory, suitably extended to the dissipative scales and to the Lagrangian domain, is found to capture the intermittency of velocity statistics over the whole three decades of temporal scales investigated here. (literal)

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