Lattice Boltzmann simulations of capillary filling: Finite vapour density effects
Istituto per le Applicazioni del Calcolo CNR, Viale del Policlinico 137, 00161 Roma, Italy
2 Department of Physics and INFN, University of Tor Vergata, via della Ricerca Scientifica 1, 00133 Roma, Italy
3 Department of Mechanical Engineering, University of Tor Vergata, Viale Politecnico 8, Rome, Italy
Numerical simulations of two-dimensional capillary filling using the pseudo-potential lattice Boltzmann model for multiphase fluids are presented. It is shown that whenever the density of the light-phase exceeds about ten percent of the dense phase, the front motion proceeds through a combined effect of capillary advection and condensation.
© EDP Sciences, Springer-Verlag, 2009