Long-wavelength nonequilibrium concentration fluctuations induced by the Soret effect
| dc.contributor.author | Ortiz De Zárate Leira, José María | |
| dc.contributor.author | Fornés, José Antonio | |
| dc.contributor.author | Sengers, Jan V. | |
| dc.date.accessioned | 2023-06-20T10:47:49Z | |
| dc.date.available | 2023-06-20T10:47:49Z | |
| dc.date.issued | 2006-10 | |
| dc.description | © 2006 The American Physical Society. | |
| dc.description.abstract | In this paper we evaluate the enhancement of nonequilibrium concentration fluctuations induced by the Soret effect when a binary fluid layer is subjected to a stationary temperature gradient. Starting from the fluctuating Boussinesq equations for a binary fluid in the large-Lewis-number approximation, we show how one can obtain an exact expression for the nonequilibrium structure factor in the long-wavelength limit for a fluid layer with realistic impermeable and no-slip boundary conditions. A numerical calculation of the wave-number dependence of the nonequilibrium enhancement and of the corresponding decay rate of the concentration fluctuations is also presented. Some physical consequences of our results are briefly discussed. | |
| dc.description.department | Depto. de Estructura de la Materia, Física Térmica y Electrónica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/27331 | |
| dc.identifier.doi | 10.1103/PhysRevE.74.046305 | |
| dc.identifier.issn | 1539-3755 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1103/PhysRevE.74.046305 | |
| dc.identifier.relatedurl | http://journals.aps.org/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/51239 | |
| dc.issue.number | 4 | |
| dc.journal.title | Physical Review E | |
| dc.language.iso | eng | |
| dc.publisher | American Physical Society | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 536 | |
| dc.subject.keyword | Giant Fluctuations | |
| dc.subject.keyword | Benard Problem | |
| dc.subject.keyword | Liquid | |
| dc.subject.keyword | Equilibrium | |
| dc.subject.keyword | Diffusion | |
| dc.subject.keyword | States | |
| dc.subject.keyword | Fluid | |
| dc.subject.keyword | Boundaries | |
| dc.subject.keyword | Mixtures | |
| dc.subject.keyword | Gravity | |
| dc.subject.ucm | Termodinámica | |
| dc.subject.unesco | 2213 Termodinámica | |
| dc.title | Long-wavelength nonequilibrium concentration fluctuations induced by the Soret effect | |
| dc.type | journal article | |
| dc.volume.number | 74 | |
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| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | d2b809b1-3ba2-407e-add2-8b8251e306ba | |
| relation.isAuthorOfPublication.latestForDiscovery | d2b809b1-3ba2-407e-add2-8b8251e306ba |
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