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Écoulement de gouttes dans des microcanaux : simulations numériques et expériences

hal.structure.identifierLaboratoire du Futur [LOF]
dc.contributor.authorCOLIN, Annie
hal.structure.identifierLaboratoire du Futur [LOF]
dc.contributor.authorCRISTOBAL, Galder
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierCentre de Physique Théorique - UMR 6207 [CPT]
hal.structure.identifierCentre de Physique Théorique - UMR 7332 [CPT]
dc.contributor.authorGALUSINSKI, Cedric
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorKHADRA, Khodor
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
hal.structure.identifierLaboratoire de Mathématiques [LAMA]
dc.contributor.authorVIGNEAUX, Paul
dc.date.accessioned2024-04-04T03:02:21Z
dc.date.available2024-04-04T03:02:21Z
dc.date.created2007-04-02
dc.date.issued2007-08-27
dc.date.conference2007-08-27
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/192974
dc.description.abstractEnOver the last decade, microfluidics has revolutionized our ability to manipulate and control flows in channels the width of a single human hair. Due to preponderant effect of surface tension, flows of two immiscible fluids in microdevices allow to create monodisperse emulsions where droplets are used as microreactors to study very fast chemical kinetics. In this paper, we present a new numerical method for immiscible incompressible bifluid flows in microfluidics. This Level Set approach allows fast and accurate simulations of droplets hydrodynamics in microchannels. We particularly focus on mixing dynamics inside microdroplets : numerical simulations are in good agreement with physical experiments. Zones, where fluid is trapped in front and at the back of the droplet, already observed experimentally, are brought to the fore numerically. In addition, we explore various mixing dynamics inside microdroplets by studying the influence of parameters such as droplet volume, injection velocity, viscosity ratio and confinement.
dc.language.isofr
dc.subjectmicrofluidique
dc.subjectlevel set
dc.subjectmicrogouttes
dc.titleÉcoulement de gouttes dans des microcanaux : simulations numériques et expériences
dc.typeCommunication dans un congrès
dc.subject.halMathématiques [math]/Analyse numérique [math.NA]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]
bordeaux.pageCFM2007-1446
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.conference.titleCFM 2007 - 18ème Congrès Français de Mécanique
bordeaux.countryFR
bordeaux.conference.cityGrenoble
bordeaux.peerReviewedoui
hal.identifierhal-00198752
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2007-08-31
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00198752v1
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