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Sticky elastic collisions

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 19 Jun 2013Embargo end date: 01 Jan 2012 Italy, France Publisher:American Physical Society (APS)Journal:Physical Review E, volume 87 (issn: 1539-3755, eissn: 1550-2376,

Authors: Bec, J.; Musacchio, Stefano; Samriddhi, Sankar Ray;

doi: 10.1103/physreve.87.063013 , 10.48550/arxiv.1212.5017

pmid: 23848778

arXiv: http://arxiv.org/abs/1212.5017

handle: 2318/1689792

Sticky elastic collisions

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Abstract

The effects of purely elastic collisions on the dynamics of heavy inertial particles is investigated in a three-dimensional random incompressible flow. It is shown that the statistical properties of inter-particle separations and relative velocities are strongly influenced by the occurrence of sticky elastic collisions - particle pairs undergo a large number of collisions against each other during a small time interval over which, hence, they remain close to each other. A theoretical framework is provided for describing and quantifying this phenomenon and it is substantiated by numerical simulations. Furthermore, the impact of hydrodynamic interactions is discussed for such a system of colliding particles.

10 pages, 6 figures

Countries

Italy, France

Related Organizations

University of Turin
Italy
Lagrange Laboratory
France
International Centre for Theoretical Sciences
India
Tata Institute of Fundamental Research
India
Laboratoire Jean-Alexandre Dieudonné
France

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Keywords

Fluid Dynamics (physics.flu-dyn), FOS: Physical sciences, [PHYS.PHYS.PHYS-FLU-DYN] Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn], Physics - Fluid Dynamics, Chaotic Dynamics (nlin.CD), Nonlinear Sciences - Chaotic Dynamics, Statistical and Nonlinear Physics; Statistics and Probability; Condensed Matter Physics

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