Premium
Miscible Displacement: III. Theoretical Considerations
Author(s) -
Nielsen D. R.,
Biggar J. W.
Publication year - 1962
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1962.03615995002600030010x
Subject(s) - displacement (psychology) , porous medium , soil water , porosity , flow (mathematics) , geotechnical engineering , mechanics , materials science , mineralogy , geology , mathematics , calculus (dental) , soil science , physics , psychology , psychotherapist , medicine , dentistry
Several theoretical models are examined as to their usefulness in describing miscible displacement in porous materials. These descriptions are discussed for glass beads, sieved aggregates and soils at several water contents and for several flow velocities. It is shown that mathematical descriptions which do not include individual mechanisms are unsatisfactory. The mechanisms that must be considered are discussed with specific reference to experimental data.