A non-local modification of a lattice Boltzmann model

F. Hayot; L. Wagner

doi:10.1209/epl/i1996-00358-9

A non-local modification of a lattice Boltzmann model

F. Hayot
, L. Wagner

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

2 Scopus citations

Abstract

We discuss a non-local modification of the lattice Boltzmann BGK model. The modification involves the mixing of particle configurations over a range of distances. We show that at large distances and large times the modified BGK model entails the presence of an effective viscosity, and is thus similar to the usual closure approximation to the Navier-Stokes equation. We discuss the case of turbulent channel flow.

Original language	English
Pages (from-to)	435-440
Number of pages	6
Journal	Europhysics Letters
Volume	33
Issue number	6
DOIs	https://doi.org/10.1209/epl/i1996-00358-9
State	Published - 20 Feb 1996
Externally published	Yes

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title = "A non-local modification of a lattice Boltzmann model",

abstract = "We discuss a non-local modification of the lattice Boltzmann BGK model. The modification involves the mixing of particle configurations over a range of distances. We show that at large distances and large times the modified BGK model entails the presence of an effective viscosity, and is thus similar to the usual closure approximation to the Navier-Stokes equation. We discuss the case of turbulent channel flow.",

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AU - Wagner, L.

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N2 - We discuss a non-local modification of the lattice Boltzmann BGK model. The modification involves the mixing of particle configurations over a range of distances. We show that at large distances and large times the modified BGK model entails the presence of an effective viscosity, and is thus similar to the usual closure approximation to the Navier-Stokes equation. We discuss the case of turbulent channel flow.

AB - We discuss a non-local modification of the lattice Boltzmann BGK model. The modification involves the mixing of particle configurations over a range of distances. We show that at large distances and large times the modified BGK model entails the presence of an effective viscosity, and is thus similar to the usual closure approximation to the Navier-Stokes equation. We discuss the case of turbulent channel flow.

UR - https://www.scopus.com/pages/publications/0030553160

U2 - 10.1209/epl/i1996-00358-9

DO - 10.1209/epl/i1996-00358-9

M3 - Article

AN - SCOPUS:0030553160

SN - 0295-5075

VL - 33

SP - 435

EP - 440

JO - Europhysics Letters

JF - Europhysics Letters

IS - 6

ER -

A non-local modification of a lattice Boltzmann model

Abstract

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