Afficher la notice abrégée

dc.contributor.authorGUILLAUMENT, Romain
dc.contributor.authorERRIGUIBLE, Arnaud
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMARRE, Samuel
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorSUBRA-PATERNAULT, Pascale
dc.date.issued2013
dc.identifier.issn0896-8446
dc.description.abstractEnIn this work, a two dimensional simulation of segmented micro coflows of CO2 and water in microcapillaries (20 < T (°C) < 50 and 8 < p (MPa) < 16.5) was carried out using a combination of the one-fluid model and the volume of fluid (VOF) method to describe the two-phase flow and a penalty method to account for the wetting property of the capillary walls. The computational work was validated by comparing numerical and experimental results in both the dripping and jetting regimes. The agreement of the calculated pressure difference across the droplet or jet interface with the Laplace-Young's law was assessed as supplementary criteria. The effects of CO2/water interfacial tension (5 < σ (mN m−1) < 35) and wall wettability (contact angle CO2/wall varying from 0 to 180°) on the segmented water-supercritical CO2 microflows were specially described. It was shown that switching the wall surface from hydrophilic to hydrophobic by tuning the contact angle allows for changing the droplet curvature so that the continuous water phase eventually undergoes a phase inversion resulting in water droplets/slugs formation in a continuous CO2 phase.
dc.language.isoen
dc.publisherElsevier
dc.subject.enMultiphase flow
dc.subject.enMicrofluidics
dc.subject.enCFD
dc.subject.enWettability
dc.subject.enCO2/water systems
dc.title.enNumerical simulation of dripping and jetting in supercritical fluids/liquid micro coflows
dc.typeArticle de revue
dc.identifier.doi10.1016/j.supflu.2013.04.011
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
bordeaux.journalJournal of Supercritical Fluids
bordeaux.page15-22
bordeaux.volume81
bordeaux.peerReviewedoui
hal.identifierhal-00829492
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00829492v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Journal%20of%20Supercritical%20Fluids&amp;rft.date=2013&amp;rft.volume=81&amp;rft.spage=15-22&amp;rft.epage=15-22&amp;rft.eissn=0896-8446&amp;rft.issn=0896-8446&amp;rft.au=GUILLAUMENT,%20Romain&amp;ERRIGUIBLE,%20Arnaud&amp;AYMONIER,%20Cyril&amp;MARRE,%20Samuel&amp;SUBRA-PATERNAULT,%20Pascale&amp;rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée