Weighted density Lattice Boltzmann approach to fluids under confinement (Articolo in rivista)

Type
Label
  • Weighted density Lattice Boltzmann approach to fluids under confinement (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1080/00268976.2013.771801 (literal)
Alternative label
  • Marconi U.M.B.; Melchionna S. (2013)
    Weighted density Lattice Boltzmann approach to fluids under confinement
    in Molecular physics (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Marconi U.M.B.; Melchionna S. (literal)
Pagina inizio
  • 3126 (literal)
Pagina fine
  • 3135 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84887817337&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 111 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 20 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Scuola di Scienze e Tecnologie, Università di Camerino, INFN, Sez. di Perugia, Via Madonna delle Carceri, 62032 Camerino, Italy; CNR-IPCF, Consiglio Nazionale Delle Ricerche, Università Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy (literal)
Titolo
  • Weighted density Lattice Boltzmann approach to fluids under confinement (literal)
Abstract
  • The Enskog-like kinetic approach, recently introduced by us to study strongly inhomogeneous fluids, is reconsidered in order to improve the description of the transport coefficients. The approach is based on a separation of the interaction between hydrodynamic and non-hydrodynamic parts. The latter is treated within a simple relaxation approximation. We show that, by considering the non-hydrodynamic part via a weighted density approximation, we obtain a better prediction of the transport coefficients. By virtue of the simplicity of the kinetic equation we are able to solve numerically the phase space distribution in the presence of inhomogeneities, such as confining surfaces, via a Lattice Boltzmann method. Analytical estimates of the importance of these corrections to the transport coefficients in bulk conditions is provided. Poiseuille flow of the hard-sphere fluid confined between two parallel smooth walls is studied and their pore-averaged properties are determined. © 2013 Taylor & Francis. (literal)
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