Fluid Dynamics

, Volume 41, Issue 4, pp 574–584 | Cite as

Phase discontinuities in water flows through a porous medium

  • A. A. Afanas’ev
  • A. A. Barmin
Article

Abstract

Flow of a fluid through a porous medium is considered with allowance for heat conduction processes and phase transitions. Discontinuities in flows between both single-phase zones saturated with water and steam and single-and two-phase zones saturated with an equilibrium steam-water mixture are studied. It is shown that only the evaporation fronts are evolutionary for a convex-downward shock adiabat of the discontinuity inside the steam-water mixture. The structure of these fronts is considered and a condition supplementary to the conservation laws and necessary for the well-posed formulation of problems whose solution contains this front is found from the condition of existence of a discontinuity structure between the water (steam) and the steam-water mixture.

Keywords

flow through a porous medium phase transitions discontinuities evolutionarity discontinuity structure 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • A. A. Afanas’ev
  • A. A. Barmin

There are no affiliations available

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