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dc.contributor.authorKjelstrup, Signe
dc.contributor.authorBedeaux, Dick
dc.contributor.authorHansen, Alex
dc.contributor.authorHafskjold, Bjørn
dc.contributor.authorGalteland, Olav
dc.identifier.citationFrontiers in Physics
dc.description.abstractWe define a representative elementary volume of a porous medium in terms of lumped extensive variables, including properties of homogeneous phases, interfaces, and contact lines. Using the grand potential, we define the pressure of the REV in a medium in a new manner. From the entropy production expressed in these variables, we develop new constitutive equations for multi-component, multi-phase, macro-scale flow. The system is exposed to temperature, composition, and pressure gradients. New contributions due to varying porosity or surface tension offer explanations for non-Darcy behavior, and predict thermal osmosis special for porous media. An experimental program is suggested to verify Onsager symmetry in the transport coefficients. The analysis is limited to non-deformable systems, which obey Euler homogeneity on the REV level.nb_NO
dc.publisherFrontiers Medianb_NO
dc.titleNon-isothermal transport of multi-phase fluids in porous media. Constitutive equationsnb_NO
dc.typePeer reviewed, Journal articlenb_NO
dc.description.versionPublished versionnb_NO
dc.source.journalFrontiers in Physics
dc.description.localcode© 2019 Kjelstrup, Bedeaux, Hansen, Hafskjold and Galteland. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
cristin.unitnameInstitutt for kjemi
cristin.unitnameInstitutt for fysikk

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