Simulation of multi-component multi-phase fluid flow in two-dimensional anisotropic heterogeneous porous media using high-order control volume distributed methods

Mojtaba Moshiri, Mehrdad Taghizadeh Manzari

Research output: Contribution to journalArticle

Abstract

In this paper, flow of multi-component two-phase fluids in highly heterogeneous anisotropic two-dimensional porous media is studied using computational methods suitable for unstructured triangular and/or quadrilateral grids. The physical model accounts for miscibility and compressibility of fluids while gravity and capillary effects are neglected. The governing equations consist of a pressure equation together with a system of mass conservation equations. For solving pressure equation, a new method called Control Volume Distributed Finite Element Method (CVDFEM) is introduced which uses Control Volume Distributed (CVD) vertex-centered grids. It is shown that the proposed method is able to approximate the pressure field in highly anisotropic and heterogeneous porous media fairly accurately. Moreover the system of mass conservation equations is solved using various upwind and central schemes. These schemes are extended from one-dimensional to two-dimensional unstructured grids. Using a series of numerical test cases, comparison is made between different approaches for approximation of the hyperbolic flux function. Semi one-dimensional high-order data reconstruction procedures are employed to decrease stream-wise numerical diffusion. The results suggest that the Modified Dominant Wave (MDW) scheme outperforms other hyperbolic schemes studied in this paper from both accuracy and computational cost points of view.

Original languageEnglish
Pages (from-to)3303-3328
Number of pages26
JournalComputers & Mathematics with Applications
Volume78
Issue number10
Early online date29 May 2019
DOIs
Publication statusE-pub ahead of print - 29 May 2019

Fingerprint

Heterogeneous Porous Media
Multiphase Flow
Control Volume
Fluid Flow
Porous materials
Flow of fluids
Higher Order
Mass Conservation
Conservation
Simulation
Fluids
Computational methods
Central Schemes
Grid
Compressibility
Fluid
Upwind Scheme
Unstructured Grid
Gravitation
Solubility

Keywords

  • conservation laws
  • high-order
  • unstructured
  • anisotropic
  • heterogeneous
  • compositional

Cite this

Simulation of multi-component multi-phase fluid flow in two-dimensional anisotropic heterogeneous porous media using high-order control volume distributed methods. / Moshiri, Mojtaba; Taghizadeh Manzari, Mehrdad.

In: Computers & Mathematics with Applications, Vol. 78, No. 10, 15.11.2019, p. 3303-3328.

Research output: Contribution to journalArticle

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