Defining the pressures of a fluid in a nanoporous, heterogeneous medium
dc.contributor.author | Galteland, Olav | |
dc.contributor.author | Rauter, Michael Tobias | |
dc.contributor.author | Varughese, Kevin K. | |
dc.contributor.author | Bedeaux, Dick | |
dc.contributor.author | Kjelstrup, Signe Helene | |
dc.date.accessioned | 2022-11-23T14:34:14Z | |
dc.date.available | 2022-11-23T14:34:14Z | |
dc.date.created | 2022-01-31T13:17:05Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 2331-8422 | |
dc.identifier.uri | https://hdl.handle.net/11250/3033727 | |
dc.description.abstract | We describe the thermodynamic state of a single-phase fluid confined to a porous medium with Hill's thermodynamics of small systems, also known as nanothermodynamics. This way of defining small system thermodynamics, with a separate set of control variables, may be useful for the study of transport in non-deformable porous media, where presently no consensus exists on pressure computations. For a confined fluid, we observe that there are two pressures, the integral and the differential pressures. We use molecular simulations to investigate and confirm the nanothermodynamic relations for a representative elementary volume (REV). For a model system of a single-phase fluid in a face-centered cubic lattice of solid spheres of varying porosity, we calculate the fluid density, fluid-solid surface tension, replica energy, integral pressure, entropy, and internal energy. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Frontiers Media | en_US |
dc.relation.uri | https://arxiv.org/pdf/2201.13060.pdf | |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Defining the pressures of a fluid in a nanoporous, heterogeneous medium | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.journal | Frontiers in Physics | en_US |
dc.identifier.doi | 10.3389/fphy.2022.866577 | |
dc.identifier.cristin | 1994728 | |
dc.relation.project | Notur/NorStore: NN9229K | en_US |
dc.relation.project | Notur/NorStore: nn8022k | en_US |
dc.relation.project | Norges forskningsråd: 262644 | en_US |
cristin.ispublished | false | |
cristin.fulltext | preprint |
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