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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8150
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dc.contributor.authorRay, Swarnak-
dc.contributor.authorRoy, Arun-
dc.date.accessioned2023-09-26T05:46:42Z-
dc.date.available2023-09-26T05:46:42Z-
dc.date.issued2023-09-08-
dc.identifier.citationPhysical Review E, 2023, Vol. 108,p035102en_US
dc.identifier.issn2470-0045-
dc.identifier.issn2470-0053 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/8150-
dc.descriptionRestricted Access.en_US
dc.description.abstractWe propose a simple active hydrodynamic model for the self-propulsion of a liquid droplet suspended in micellar solutions. The self-propulsion of the droplet occurs by spontaneous breaking of isotropic symmetry and is studied using both analytical and numerical methods. The emergence of self-propulsion arises from the slow dissolution of the inner fluid into the outer micellar solution as filled micelles. We propose that the surface generation of filled micelles is the dominant reason for the self-propulsion of the droplet. The flow instability is due to the Marangoni stress generated by the nonuniform distribution of the surfactant molecules on the droplet interface. In our model, the driving parameter of the instability is the excess surfactant concentration above the critical micellar concentration, which directly correlates with the experimental observations. We consider various low-order modes of flow instability and show that the first mode becomes unstable through a supercritical bifurcation and is the only mode contributing to the swimming of the droplet. The flow fields around the droplet for these modes and their combined effects are also discussed.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttps://arxiv.org/abs/2307.05196en_US
dc.relation.urihttps://ui.adsabs.harvard.edu/abs/2023PhRvE.108c5102R/abstracten_US
dc.relation.urihttps://doi.org/10.1103/PhysRevE.108.035102en_US
dc.rights2023 American Physical Societyen_US
dc.subjectinterfacial flowsen_US
dc.subjectlow reynolds number flowsen_US
dc.subjectsurface and interfacial phenomenaen_US
dc.titleSimple model for self-propulsion of microdroplets in surfactant solutionen_US
dc.typeArticleen_US
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