Miscible Displacement in an Unsaturated Glass Bead Medium

A series of miscible displacement experiments was conducted in an unsaturated glass bead medium maintained at a constant average water content during each displacement. The variation in the form of the breakthrough curve with decreasing water content was not large and was not related in a simple way...

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Bibliographic Details
Published in:Water resources research 1968-08, Vol.4 (4), p.809-815
Main Authors: Krupp, H. K., Elrick, D. E.
Format: Article
Language:English
Subjects:
chemical transport
miscible displacement
Porous mediums
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Summary:A series of miscible displacement experiments was conducted in an unsaturated glass bead medium maintained at a constant average water content during each displacement. The variation in the form of the breakthrough curve with decreasing water content was not large and was not related in a simple way to the water content; however, there was a consistent shift of the breakthrough curve to the left of the relative concentration value of 0.5 and 1 pore volume and a long tail or slow approach to the final relative concentration of 1.0. Some of these effects may be attributed to the presence of ‘stagnant’ liquid in the pores.
ISSN:0043-1397
1944-7973
DOI:10.1029/WR004i004p00809