http://www.cnr.it/ontology/cnr/individuo/prodotto/ID3089

Lattice Boltzmann method for inhomogeneous fluids (Articolo in rivista)

Type

Label

Lattice Boltzmann method for inhomogeneous fluids (Articolo in rivista) (literal)

Anno

Alternative label

Melchionna, S; Marconi, UMB (2008)
Lattice Boltzmann method for inhomogeneous fluids
in Europhysics letters (Print)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

\"[Melchionna, S.] Univ Rome, Dipartimento Fis, INFM SOFT, I-00185 Rome, Italy; [Melchionna, S.] Ist Nazl Fis Mat, I-00185 Rome, Italy; [Marconi, U. Marini Bettolo] Univ Camerino, Dipartimento Fis, INFM SOFT, I-62032 Camerino, Italy; [Marconi, U. Marini Bettolo] Ist Nazl Fis Mat, I-62032 Camerino, Italy (literal)

Titolo

Abstract

We present a lattice-based numerical method to describe the non-equilibrium behavior of a simple fluid under non-uniform spatial conditions. The evolution equation for the one-particle phase-space distribution function is derived starting from a microscopic description of the system. It involves a series of approximations which are similar to those employed in theories of inhomogeneous fluids, such as the density functional theory. Among the merits of the present approach: the possibility to determine the equation of state of the model, the transport coefficients and to provide an efficient method of numerical solution under non-uniform conditions. The algorithm is tested in a particular non-equilibrium situation, namely the steady flow of a hardsphere fluid across a narrow slit. Pronounced non-hydrodynamic oscillations in the density and velocity profiles are found. Copyright (C) EPLA, 2008. (literal)

Prodotto di