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dc.contributor.authorBou-Ali, M. Mounir
dc.contributor.otherSeta, Berin
dc.contributor.otherGavalda, Josefina
dc.contributor.otherRuiz, Xavier
dc.date.accessioned2020-10-22T10:00:28Z
dc.date.available2020-10-22T10:00:28Z
dc.date.issued2020
dc.identifier.issn1290-0729en
dc.identifier.otherhttps://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=160425en
dc.identifier.urihttp://hdl.handle.net/20.500.11984/1863
dc.description.abstractIn the present work, an interferometric unsteady analysis of the thermogravitational technique was for the first time attempted in a paralelepipedic microcolumn using binary mixtures with negative Soret coefficients. In particular, water/ethanol and toluene/methanol were considered, as they have significantly different thermophysical properties and relaxation times. Experiments were run with different temperature gradients in order to understand their impact on the stability of separation. Experimental results were compared with theoretical ones, predicted by Fury-Jones-Onsager theory, and by OpenFOAM 3D numerical simulations. Correlations between the separation and the flow in the third dimension perpendicular to the thermal gradient of the thermogravitational microcolumn were analysed. Numerical simulations were also conducted in traditional cylindrical columns in order to compare the results with those previously reported. In these cases, the impact on separation stability was correlated with the azimuthal component of velocity. Thus, in both configurations, the disturbing convective current, always generated in the direction perpendicular to the thermal gradient applied, was shown to be vital for flow stability analysis.en
dc.description.sponsorshipGobierno Vascoes
dc.description.sponsorshipDiputación Foral de Gipuzkoaes
dc.description.sponsorshipGobierno de Españaes
dc.language.isoengen
dc.publisherElsevier Masson SASen
dc.rights© 2020 Elsevier Masson SASen
dc.titleStability analysis under thermogravitational effecten
dc.typeinfo:eu-repo/semantics/articleen
dcterms.accessRightsinfo:eu-repo/semantics/embargoedAccessen
dcterms.sourceInternational Journal of Thermal Sciencesen
dc.description.versioninfo:eu-repo/semantics/acceptedVersionen
local.contributor.groupMecánica de fluidoses
local.description.peerreviewedtrueen
local.identifier.doihttps://doi.org/10.1016/j.ijthermalsci.2020.106464en
local.relation.projectIDGV/Ikertalde Convocatoria 2016-2021/IT1009-16/CAPV/Mecánica de fluidos/en
local.relation.projectIDDFG/Programa de Red guipuzcoana de Ciencia, Tecnología e Innovación 2018/2018-CIEN-000101-01/GIP/Análisis de fenómenos de transporte en fluidos complejos de interés industrial/FETRAFLUen
local.relation.projectIDGE/Programa Estatal fomento de la investigacion científica y técnica de excelencia, subprograma Estatal de generación del conocimiento 2017 en el marco del plan Estatal de I+D+I 2013-2016/ESP2017-83544-C3-1-P/Análisis experimental de los fenómenos de transporte en mezclas líquidas multicomponentes y de nanofluidos en las condiciones terrestres y de microgravedad/MEZNAFLUen
local.embargo.enddate2022-10-31
local.contributor.otherinstitutionUniversitat Rovira i Virgilies
local.source.detailsVol. 156. N. artículo 106464, 2020en


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