期刊
ADVANCES IN WATER RESOURCES
卷 31, 期 4, 页码 661-673出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.advwatres.2007.12.005
关键词
porous media; multiphase flow; dynamic relative permeability; dynamic capillary pressure; nonequilibrium models; elliptic regions
In this paper we extend to three-phase flow the nonequilibrium formalism proposed by Barenblatt and co-workers for two-phase porous media flow. The underlying idea is to include nonequilibrium effects by introducing a pair of effective water and gas saturations, which are linked to the actual saturations by a local evolution equation. We illustrate and analyze how nonequilibrium effects lead to qualitative and quantitative differences in the solution of the three-phase flow equations. (c) 2008 Elsevier Ltd. All rights reserved.
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