Analytical calculation of slip flow in lattice Boltzmann models with kinetic boundary conditions
Articolo
Data di Pubblicazione:
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.
Tipologia CRIS:
01.01 Articolo in rivista
Keywords:
RAREFIED-GAS FLOWS; LAMPIS SCATTERING KERNEL; EQUATION; MICROCHANNELS; SIMULATION; DYNAMICS
Elenco autori:
Succi, Sauro
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