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Non-equilibrium model of three-phase flow in porous media in presence of capillary and gravity forces

Jahanbakhshi, S ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jhydrol.2012.11.051
  3. Publisher: 2013
  4. Abstract:
  5. In this work a generalized non-equilibrium model of three-phase flow in porous media including gravity as well as capillary terms is developed and used for analysis of Riemann's problem in several three-phase systems. The proposed model uses the extension of Barenblatt model to three-phase systems considering dynamic effects in both relative permeability and capillary pressure functions. We compare the solution of the Riemann's problem when non-equilibrium effects are included. While equilibrium formulation develops unstable oscillatory solution in the elliptic region, non-equilibrium solution is smooth and stable. The results of this work might be helpful to better understanding the behavior of three-phase flow in porous media
  6. Keywords:
  7. Capillary ; Gravity ; Three-phase flow ; Capillary ; Elliptic regions ; Non-equilibrium modeling ; Riemann problem ; Porous materials ; Gravitation ; Capillarity ; Qravity field ; Oscillating flow ; Permeability ; Porous medium
  8. Source: Journal of Hydrology ; Volume 478 , 2013 , Pages 119-131 ; 00221694 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S002216941201030X