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Stability criteria for miscible displacement of fluids from a porous medium
Author(s) -
Schowalter W. R.
Publication year - 1965
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690110122
Subject(s) - displacement (psychology) , viscosity , constant (computer programming) , porous medium , mechanics , porosity , fluid dynamics , thermodynamics , flow (mathematics) , flow velocity , materials science , composite material , physics , computer science , psychotherapist , programming language , psychology
Stability criteria are formulated for displacement of a fluid from an infinite porous medium by a second more dense fluid miscible with the fluid being displaced. Pure displacing fluid is separated from pure displaced fluid by a region of constant thickness in which the two fluids interpenetrate. The steady displacement process takes place at a constant velocity in the direction of gravity. It is shown that appreciable differences in pure‐component densities, viscosity variation within the zone of interpenetration, and the displacement velocity can have a major effect on the stability criteria of such a flow.