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- W4226253581 abstract "We develop a phase-field model for evaporation in a porous medium by explicitly considering a vapor component together with the liquid and gas phases in the system. The phase-field model consists of the conservation of mass (for phases and vapor component), momentum, and energy. In addition, the evolution of the phase field is described by the Allen-Cahn equation. In the limit of vanishing interface width, matched asymptotic expansions reveal that the phase-field model reduces to the sharp-interface model with all the relevant transmission conditions at the moving interface. An energy estimate is derived, which suggests that for the diffusion-dominated regime, energy always decreases with time. However, this is not always the case for other regimes. The phase-field model is upscaled to the Darcy scale using periodic homogenization for the diffusion-dominated regime. The effective parameters at the Darcy scale are connected to the pore scale through corresponding cell problems." @default.
- W4226253581 created "2022-05-05" @default.
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- W4226253581 date "2021-12-24" @default.
- W4226253581 modified "2023-09-26" @default.
- W4226253581 title "A phase-field approach to model evaporation in porous media: Upscaling from pore to Darcy scale" @default.
- W4226253581 doi "https://doi.org/10.48550/arxiv.2112.13104" @default.
- W4226253581 hasPublicationYear "2021" @default.
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