Microstructure of two-phase flow and mass transfer in porous systems and packed beds
V.V. Kuznetsov
Kutateladze Institute of Thermophyhsics SB RAS, Novosibisrk, Russia
Keywords: two-liquid and gas-liquid flows, porous medium, capillary equilibrium, phase distribution, longitudinal dispersion
Abstract
A lattice model of the pore space of a microsphere packing and a method for calculating the microstructure of a two-phase flow, taking into account the topology of pores, are proposed. The sequence of filling the pore constrictions and expansions with drainage and impregnation phases and the dependence of capillary pressure on saturation of phases and the coefficient of longitudinal dispersion for transfer of a dissolved substance were obtained under conditions of the determining influence of capillary forces.
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