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Experimental and mathematical modeling of liquid‐liquid miscible displacement in porous media
Author(s) -
Chhatwal Surjit S.,
Cox Ronald L.,
Green Don W.,
Ghandi Bharat
Publication year - 1973
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr009i005p01369
Subject(s) - porous medium , displacement (psychology) , mechanics , dispersion (optics) , liquid liquid , liquid flow , liquid medium , materials science , flow (mathematics) , porosity , geotechnical engineering , chromatography , geology , physics , optics , chemistry , composite material , psychology , psychotherapist
When one liquid in a porous medium displaces a second miscible liquid of different density, both gravity effects and dispersion are present at the liquid‐liquid interface. Equations describing this process have been solved numerically. The method of characteristics numerical solution and a new technique, the centered in distance, centered in time method, have been studied. The methods are evaluated by a direct comparison and by checking against an analytical solution for the case of one‐dimensional flow. The solutions were used to simulate saltwater displacement experiments in a two‐dimensional laboratory model as a further test.