dc.contributor.author | Kjelstrup, Signe | |
dc.contributor.author | Bedeaux, Dick | |
dc.contributor.author | Hansen, Alex | |
dc.contributor.author | Hafskjold, Bjørn | |
dc.contributor.author | Galteland, Olav | |
dc.date.accessioned | 2018-12-10T07:13:06Z | |
dc.date.available | 2018-12-10T07:13:06Z | |
dc.date.created | 2018-12-09T10:49:41Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Frontiers in Physics. 2018, 6 1-34. | nb_NO |
dc.identifier.issn | 2296-424X | |
dc.identifier.uri | http://hdl.handle.net/11250/2576711 | |
dc.description.abstract | We derive the entropy production for transport of multi-phase fluids in a non-deformable, porous medium exposed to differences in pressure, temperature, and chemical potentials. Thermodynamic extensive variables on the macro-scale are obtained by integrating over a representative elementary volume (REV). Contributions come from porous media specific properties, phase volumes, surface areas, and contact lines. Curvature effects are neglected. Using Euler homogeneity of the first order, we obtain the Gibbs equation for the REV. From this we define the intensive variables, the temperature, pressure, and chemical potentials, and, using the balance equations, we derive the entropy production for the REV. The entropy production defines sets of independent conjugate thermodynamic fluxes and forces in the standard way. The transport of two-phase flow of immiscible components is used to give a first illustration of the equations. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Frontiers Media | nb_NO |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Non-isothermal transport of multi-phase fluids in porous media; The entropy production | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.pagenumber | 1-34 | nb_NO |
dc.source.volume | 6 | nb_NO |
dc.source.journal | Frontiers in Physics | nb_NO |
dc.identifier.doi | 10.3389/fphy.2018.00126 | |
dc.identifier.cristin | 1640720 | |
dc.description.localcode | Copyright © 2018 Kjelstrup, Bedeaux, Hansen, Hafskjold and Galteland. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). | nb_NO |
cristin.unitcode | 194,66,25,0 | |
cristin.unitcode | 194,66,20,0 | |
cristin.unitname | Institutt for kjemi | |
cristin.unitname | Institutt for fysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |