Geometry of Lagrangian dispersion in turbulence

Alain Pumir; Boris I. Shraiman; Misha Chertkov

doi:10.1103/PhysRevLett.85.5324

Geometry of Lagrangian dispersion in turbulence

Alain Pumir
, Boris I. Shraiman
, Misha Chertkov

Research output: Contribution to journal › Article › peer-review

87 Scopus citations

Abstract

The geometrical aspects of Lagrangian dispersion were studied via direct numerical simulations (DNS) of the Navier-Stokes equations at moderate Reynolds numbers, and a simple phenomenological model of the Lagrangian kinematics. It was shown that initially, regular clusters of points lies in the dissipation range rapidly evolve into very strongly distorted configurations. The phenomenological model allowed to quantitatively extrapolate the DNS measurements to the high Reynold's number regime.

Original language	English (US)
Pages (from-to)	5324-5327
Number of pages	4
Journal	Physical review letters
Volume	85
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.85.5324
State	Published - Dec 18 2000
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.85.5324

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title = "Geometry of Lagrangian dispersion in turbulence",

abstract = "The geometrical aspects of Lagrangian dispersion were studied via direct numerical simulations (DNS) of the Navier-Stokes equations at moderate Reynolds numbers, and a simple phenomenological model of the Lagrangian kinematics. It was shown that initially, regular clusters of points lies in the dissipation range rapidly evolve into very strongly distorted configurations. The phenomenological model allowed to quantitatively extrapolate the DNS measurements to the high Reynold's number regime.",

author = "Alain Pumir and Shraiman, \{Boris I.\} and Misha Chertkov",

year = "2000",

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doi = "10.1103/PhysRevLett.85.5324",

language = "English (US)",

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journal = "Physical review letters",

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AU - Pumir, Alain

AU - Shraiman, Boris I.

AU - Chertkov, Misha

PY - 2000/12/18

Y1 - 2000/12/18

N2 - The geometrical aspects of Lagrangian dispersion were studied via direct numerical simulations (DNS) of the Navier-Stokes equations at moderate Reynolds numbers, and a simple phenomenological model of the Lagrangian kinematics. It was shown that initially, regular clusters of points lies in the dissipation range rapidly evolve into very strongly distorted configurations. The phenomenological model allowed to quantitatively extrapolate the DNS measurements to the high Reynold's number regime.

AB - The geometrical aspects of Lagrangian dispersion were studied via direct numerical simulations (DNS) of the Navier-Stokes equations at moderate Reynolds numbers, and a simple phenomenological model of the Lagrangian kinematics. It was shown that initially, regular clusters of points lies in the dissipation range rapidly evolve into very strongly distorted configurations. The phenomenological model allowed to quantitatively extrapolate the DNS measurements to the high Reynold's number regime.

UR - https://www.scopus.com/pages/publications/0034499807

UR - https://www.scopus.com/pages/publications/0034499807#tab=citedBy

U2 - 10.1103/PhysRevLett.85.5324

DO - 10.1103/PhysRevLett.85.5324

M3 - Article

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VL - 85

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JO - Physical review letters

JF - Physical review letters

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Geometry of Lagrangian dispersion in turbulence

Abstract

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