Preprint article · Journal article
Universal intermittent properties of particle trajectories in highly turbulent flows
École normale supérieure de Lyon1
Ruhr University Bochum2
National Research Council of Italy3
Swiss Federal Institute of Technology Zurich4
CNRS5
Haverford College6
Sibley School of Mechanical and Aerospace Engineering7
National Institute for Nuclear Physics8
Georgia Institute of Technology9
University of Rome Tor Vergata10
Meteorology, Wind Energy Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark11
Wind Energy Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark12
Risø National Laboratory for Sustainable Energy, Technical University of Denmark13
Max Planck Institute14
University of Twente15
University of Rome La Sapienza16
The University of Chicago17
...and 7 moreWe 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 R-lambda is an element of [120740]. 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.
| Language: | English |
|---|---|
| Publisher: | The American Physical Society |
| Year: | 2008 |
| Pages: | 254504 |
| ISSN: | 10797114 and 00319007 |
| Types: | Preprint article and Journal article |
| DOI: | 10.1103/PhysRevLett.100.254504 |
| ORCIDs: | Berg, Jacob , Mann, Jakob and Ott, Søren |
