Miscible displacement of a layer with finite width in porous media

Ching-Yao Chen*, S. W. Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Miscible displacement of a more viscous finite layer in porous media is simulated by means of lush accuracy numerical schemes. Viscous fingers on the trailing front where the mobility ratio is unfavorable are found to catch up, however they never break through the stable leading front. Two stages of fingering orientation are observed. At an earlier time when the influences of finite thickness of the layer are not yet fully realized, the fingers move forward with the similar features to the conventional fingering findings. However, these fingering patterns are redirected upstream after the arrival of most of fingers to the leading front. The leading front remains stable with strong dispersion effects and moves nearly constantly with original displacing velocity. The growth rate of the layer thickness depends strongly on the viscosity ratio.

Original languageEnglish
Pages (from-to)761-778
Number of pages18
JournalInternational Journal of Numerical Methods for Heat and Fluid Flow
Issue number8
StatePublished - 12 Dec 2001


  • Flow
  • Numerical simulation
  • Porous media

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