Extreme events for two-particles separations in turbulent flows

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

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

2 Citaten (Scopus)

Samenvatting

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.
Originele taal-2Engels
TitelProgress in Turbulence V (Proceedings of the iTi Conference in Turbulence 2012), 19-22 October 2012, Beryinoro, Italy
RedacteurenA. Talamelli, M. Oberlack, J. Peinke
UitgeverijSpringer
Pagina's9-16
ISBN van geprinte versie978-3-319-01859-1
DOI's
StatusGepubliceerd - 2014
Evenementconference; 5th iTi Conference in Turbulence (Bertinoro, Italy, October 19-22, 2012); 2012-10-19; 2012-10-22 -
Duur: 19 okt. 201222 okt. 2012

Publicatie series

NaamSpringer Proceedings in Physics
Volume149
ISSN van geprinte versie0930-8989

Congres

Congresconference; 5th iTi Conference in Turbulence (Bertinoro, Italy, October 19-22, 2012); 2012-10-19; 2012-10-22
Periode19/10/1222/10/12
Ander5th iTi Conference in Turbulence (Bertinoro, Italy, October 19-22, 2012)

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