We present a mathematical formulation of kinetic boundary conditions for lattice Boltzmann schemes in terms of reflection, slip, and accommodation coefficients. It is analytically and numerically shown that, in the presence of a nonzero slip coefficient, the lattice Boltzmann develops a physical slip flow component at the wall. Moreover, it is shown that the slip coefficient can be tuned in such a way to recover quantitative agreement with the analytical and experimental results up to second order in the Knudsen number.

Analytical calculation of slip flow in lattice Boltzmann models with kinetic boundary conditions

Succi S
2005

Abstract

We present a mathematical formulation of kinetic boundary conditions for lattice Boltzmann schemes in terms of reflection, slip, and accommodation coefficients. It is analytically and numerically shown that, in the presence of a nonzero slip coefficient, the lattice Boltzmann develops a physical slip flow component at the wall. Moreover, it is shown that the slip coefficient can be tuned in such a way to recover quantitative agreement with the analytical and experimental results up to second order in the Knudsen number.
2005
Istituto Applicazioni del Calcolo ''Mauro Picone''
RAREFIED-GAS FLOWS; LAMPIS SCATTERING KERNEL; EQUATION; MICROCHANNELS; SIMULATION; DYNAMICS
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/161595
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 180
  • ???jsp.display-item.citation.isi??? ND
social impact