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Smoothed particle hydrodynamics pore-scale simulations of unstable immiscible flow in porous media

Bandara, U.C. ; Tartakovsky, A.M. ; Oostrom, M. ; Palmer, B.J. ; Grate, J. ; Zhang, C.

Advances in Water Resources, 62(Part C):356-369, 2013-12, Vol.62, p.356-369 [Periódico revisado por pares]

United States: Elsevier Ltd

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  • Título:
    Smoothed particle hydrodynamics pore-scale simulations of unstable immiscible flow in porous media
  • Autor: Bandara, U.C. ; Tartakovsky, A.M. ; Oostrom, M. ; Palmer, B.J. ; Grate, J. ; Zhang, C.
  • Assuntos: Capillarity ; Capillary fingering ; Computational fluid dynamics ; Displacement ; Environmental Molecular Sciences Laboratory ; Fluid flow ; Fluids ; Hydrodynamics ; Mathematical models ; Media ; Pore-scale model ; Porous media flow displacement ; Smoothed particle hydrodynamics ; Smoothed Particle Hydrodynamics, multiphase flow, porous media, micromodel ; Viscous fingering
  • É parte de: Advances in Water Resources, 62(Part C):356-369, 2013-12, Vol.62, p.356-369
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    USDOE
    AC05-76RL01830
    PNNL-SA-97277
  • Descrição: •We use Smoothed Particle Hydrodynamics to model immiscible flow in a micromodel.•We model flow for a wide range of Capillary numbers and viscosity ratios.•We use results of laboratory experiments to validate the SPH model.•The SPH model accurately describes viscous and capillary fingering and stable displacement. We have conducted a series of high-resolution numerical experiments using the Pair-Wise Force Smoothed Particle Hydrodynamics (PF-SPH) multiphase flow model. First, we derived analytical expressions relating parameters in the PF-SPH model to the surface tension and static contact angle. Next, we used the model to study viscous fingering, capillary fingering, and stable displacement of immiscible fluids in porous media for a wide range of capillary numbers and viscosity ratios. We demonstrated that the steady state saturation profiles and the boundaries of viscous fingering, capillary fingering, and stable displacement regions compare favorably with micromodel laboratory experimental results. For a displacing fluid with low viscosity, we observed that the displacement pattern changes from viscous fingering to stable displacement with increasing injection rate. When a high viscosity fluid is injected, transition behavior from capillary fingering to stable displacement occurred as the flow rate was increased. These observations are also in agreement with the results of the micromodel laboratory experiments.
  • Editor: United States: Elsevier Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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