Homogenization of two-phase fluid flow in porous media via volume averaging

Jie Chen, Shuyu Sun*, Xiaoping Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


A technique of local volume averaging is employed to obtain general equations which depict mass and momentum transport of incompressible two-phase flow in porous media. Starting from coupled Navier–Stokes–Cahn–Hilliard equations for incompressible two-phase fluid flow, the averaging is performed without oversimplifying either the porous media or the fluid mechanical relations. The resulting equations are Darcy's law for two-phase flow with medium parameters which could be evaluated by experiment. The Richards’ equation of the mixed form can be deduced from the resulting equations.The differences between the resulting equations and the empirical two-phase fluid flow model adopted in oil industry are discussed by several numerical examples.

Original languageEnglish
Pages (from-to)265-282
Number of pages18
JournalJournal of Computational and Applied Mathematics
Publication statusPublished - Jun 2019
Externally publishedYes


  • Darcy's law for two-phase flow
  • Navier–Stokes–Cahn–Hilliard equations
  • Porous media
  • Richards’ equation
  • Volume averaging


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