An iterative perturbation method for the pressure equation in the simulation of miscible displacement in porous media

Ping Lin, Daoqi Yang

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    NOTE: THE MATHEMATICAL SYMBOLS IN THIS ABSTRACT CANNOT BE DISPLAYED CORRECTLY ON THIS PAGE. PLEASE REFER TO THE ABSTRACT IN THE PUBLISHER’S WEBSITE FOR AN ACCURATE DISPLAY. The miscible displacement problem in porous media is modeled by a nonlinear coupled system of two partial differential equations: the pressure-velocity equation and the concentration equation. An iterative perturbation procedure is proposed and analyzed for the pressure-velocity equation, which is capable of producing as accurate a velocity approximation as the mixed finite element method, and which requires the solution of symmetric positive definite linear systems. Only the velocity variable is involved in the linear systems, and the pressure variable is obtained by substitution. Trivially applying perturbation methods can only give an error $O(\epsilon)$, while our iterative scheme can improve the error to $O(\epsilon^m)$ at the $m$th iteration level, where $\epsilon$ is a small positive number. Thus the convergence rate of our iterative procedure is $O(\epsilon)$, and consequently a small number of iterations is required. Theoretical convergence analysis and numerical experiments are presented to show the efficiency and accuracy of our method. ©1998 Society for Industrial and Applied Mathematics
    Original languageEnglish
    Pages (from-to)893-911
    Number of pages19
    JournalSIAM Journal on Scientific Computing
    Volume19
    Issue number3
    DOIs
    Publication statusPublished - 1998

      Fingerprint

    Keywords

    • Miscible displacement
    • Flow in porous media
    • Perturbation method
    • Iterative method
    • Galerkin method

    Cite this