Numerical Schemes for the Barenblatt Model of Non-Equilibrium Two Phase Flow in Porous Media

نویسندگان

  • Denise Aregba-Driollet
  • Gabriella Bretti
  • Roberto Natalini
چکیده

We introduce some numerical approximations to a quasilinear problem, proposed by G. I. Barenblatt to describe non-equilibrium two-phase fluid flow in permeable porous media, with the application to the secondary oil recovery from natural reservoirs. Taking into account the theoretical results of global existence and uniqueness, approximated solutions are computed by three numerical schemes, namely, the Diagonal First Order schemes (DFO and DFO2) and the Diagonal Second Order scheme (DSO). For DFO scheme convergence is proved. The schemes’ behaviour is analysed and discussed through some numerical experiments.

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تاریخ انتشار 2008