Two-particle dispersion in turbulentlike flows

JCH Fung, JC Vassilicos - Physical Review E, 1998 - APS
Kinematic simulations are non-Markovian Lagrangian models of dispersion that incorporate
turbulentlike flow structure. We investigate the conditions for two-particle dispersion to be …

A Lagrangian model for turbulent dispersion with turbulent-like flow structure: Comparison with direct numerical simulation for two-particle statistics

NA Malik, JC Vassilicos - Physics of fluids, 1999 - pubs.aip.org
A wide range of relative two-particle dispersion statistics from the Lagrangian Kinematic
Simulation (KS) model, which contains turbulent-like flow structures, compares well with …

Elementary topology of two-dimensional turbulence from a Lagrangian viewpoint and single-particle dispersion

D Elhmaïdi, A Provenzale, A Babiano - Journal of Fluid Mechanics, 1993 - cambridge.org
We discuss a series of numerical experiments on the dispersion of neutrally buoyant
particles in two-dimensional turbulent flows. The topology of two-dimensional turbulence is …

Lagrangian properties of particles in turbulence

F Toschi, E Bodenschatz - Annual review of fluid mechanics, 2009 - annualreviews.org
The Lagrangian description of turbulence is characterized by a unique conceptual simplicity
and by an immediate connection with the physics of dispersion and mixing. In this article, we …

Multiparticle dispersion in fully developed turbulence

L Biferale, G Boffetta, A Celani, BJ Devenish… - Physics of …, 2005 - pubs.aip.org
The statistical geometry of dispersing Lagrangian clusters of four particles (tetrahedra) is
studied by means of high-resolution direct numerical simulations of three-dimensional …

Inertial-particle dynamics in turbulent flows: caustics, concentration fluctuations and random uncorrelated motion

K Gustavsson, E Meneguz, M Reeks… - New Journal of …, 2012 - iopscience.iop.org
We have performed numerical simulations of inertial particles in random model flows in the
white-noise limit (at zero Kubo number, Ku= 0) and at finite Kubo numbers. Our results for …

Anisotropic particles in turbulence

GA Voth, A Soldati - Annual Review of Fluid Mechanics, 2017 - annualreviews.org
Anisotropic particles are common in many industrial and natural turbulent flows. When these
particles are small and neutrally buoyant, they follow Lagrangian trajectories while …

Dispersion of discrete particles by continuous turbulent motions. Extensive discussion of the Tchen's theory, using a two‐parameter family of Lagrangian correlation …

G Gouesbet, A Berlemont, A Picart - The Physics of fluids, 1984 - pubs.aip.org
The theory of dispersion of discrete particles by continuous turbulent motions is first
expressed in a 3‐D formalism, as a synthesis between the 1‐D Tchen's theory of dispersion …

Geometry of Lagrangian dispersion in turbulence

A Pumir, BI Shraiman, M Chertkov - Physical review letters, 2000 - APS
Turbulent flows disperse Lagrangian particles resulting in the growth of pairwise separations
and, for sets of three or more particles, in a nontrivial dynamics of their configuration. The …

Turbulent diffusion in stably stratified non-decaying turbulence

F Nicolleau, JC Vassilicos - Journal of Fluid Mechanics, 2000 - cambridge.org
We develop a Lagrangian model of both one-particleIn this paper 'particle'and 'fluid
element'are synonymous. and two-particle turbulent diffusion in high Reynolds number and …