A stochastic-advective transport model for NAPL dissolution and degradation in non-uniform flows in porous media

2006 ◽  
Vol 87 (3-4) ◽  
pp. 253-276 ◽  
Author(s):  
T.P. Chan ◽  
Rao S. Govindaraju
Keyword(s):  
Porous Media ◽  
Transport Model ◽  
Advective Transport ◽  
Flows In Porous Media ◽  
Napl Dissolution

An accurate numerical algorithm for solving compressible three-phase flows in porous media

1997 ◽  
Vol 66 (1-2) ◽  
pp. 57-88 ◽  
Author(s):  
Mazen Saad ◽  
J.B. Bell ◽  
J.A. Trangenstein ◽  
G.R. Schubin ◽  
A. Harten ◽  
...  
Keyword(s):  
Porous Media ◽  
Numerical Algorithm ◽  
Flows In Porous Media ◽  
Three Phase ◽  
Accurate Numerical Algorithm

Shock–like structure of phase-change flow in porous media

1981 ◽  
Vol 104 ◽  
pp. 467-482 ◽  
Author(s):  
L. A. Romero ◽  
R. H. Nilson
Keyword(s):  
Porous Media ◽  
Phase Change ◽  
Single Phase ◽  
Flow In Porous Media ◽  
Two Phase ◽  
Flows In Porous Media ◽  
Dissipative Effects ◽  
Condensing Flows ◽  
Self Similar ◽  
Phase Change Flows

Shock-like features of phase-change flows in porous media are explained, based on the generalized Darcy model. The flow field consists of two-phase zones of parabolic/hyperbolic type as well as adjacent or imbedded single-phase zones of either parabolic (superheated, compressible vapour) or elliptic (subcooled, incompressible liquid) type. Within the two-phase zones or at the two-phase/single-phase interfaces, there may be steep gradients in saturation and temperature approaching shock-like behaviour when the dissipative effects of capillarity and heat-conduction are negligible. Illustrative of these shocked, multizone flow-structures are the transient condensing flows in porous media, for which a self-similar, shock-preserving (Rankine–Hugoniot) analysis is presented.

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