Flow of multicomponent mixtures with interphase mass transfer through porou
s media has been analyzed by combining thermodynamics of real fluids, the u
se of immiscible Boltzmann code and reconstructed porous media. A general a
lgorithm is detailed and applied for comparison with Poiseuille flow where
a semi-analytical solution can be found. A series of structures and phenome
na are then analysed; attention is mostly focused on liquid to gas transiti
on (or vaporization) and retrograde condensation, phase distribution and ma
croscopic quantities such as composition, liquid saturation and pressure ev
olution are systematically plotted. The role of the location of nucleation
sites is shortly investigated with a periodically constricted tube. The tot
al mass flow rate influenced the phase distribution and circulation in a tw
o-dimensional network. Finally, relative permeabilities of a reconstructed
medium are discussed; an interesting feature is that they follow hysteresis
cycles for retrograde condensation. (C) 2001 Elsevier Science Ltd. All rig
hts reserved,