Extreme events for two-particles separations in turbulent flows

L. Biferale, A.S. Lanotte, R. Scatamacchia, F. Toschi

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)

Abstract

Results from high resolution numerical simulations of tracer particles emitted from localised sources in homogeneous and isotropic flows are presented. A huge number of tracers are emitted in order to reach an unprecedented statistics concerning particles pairs motion. We show that the far tails of the particles pair separation Probability Distribution Function can not be described by a Richardsonlike distribution, even if finite Reynolds effects are introduced. We argue that to describe extreme event statistics, velocity temporal correlations and non-Gaussian fluctuations must be taken into account.
Original languageEnglish
Title of host publicationProgress in Turbulence V (Proceedings of the iTi Conference in Turbulence 2012), 19-22 October 2012, Beryinoro, Italy
EditorsA. Talamelli, M. Oberlack, J. Peinke
PublisherSpringer
Pages9-16
ISBN (Print)978-3-319-01859-1
DOIs
Publication statusPublished - 2014
Eventconference; 5th iTi Conference in Turbulence (Bertinoro, Italy, October 19-22, 2012); 2012-10-19; 2012-10-22 -
Duration: 19 Oct 201222 Oct 2012

Publication series

NameSpringer Proceedings in Physics
Volume149
ISSN (Print)0930-8989

Conference

Conferenceconference; 5th iTi Conference in Turbulence (Bertinoro, Italy, October 19-22, 2012); 2012-10-19; 2012-10-22
Period19/10/1222/10/12
Other5th iTi Conference in Turbulence (Bertinoro, Italy, October 19-22, 2012)

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