Periodic droplet formation in chemically patterned microchannels.
Simulations show that, when a phase-separated binary AB fluid is driven to flow past chemically patterned substrates in a microchannel, the fluid exhibits unique morphological instabilities. For the pattern studied, these instabilities give rise to the simultaneous, periodic formation of monodispers...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2003
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| _version_ | 1797084224379944960 |
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| author | Kuksenok, O Jasnow, D Yeomans, J Balazs, A |
| author_facet | Kuksenok, O Jasnow, D Yeomans, J Balazs, A |
| author_sort | Kuksenok, O |
| collection | OXFORD |
| description | Simulations show that, when a phase-separated binary AB fluid is driven to flow past chemically patterned substrates in a microchannel, the fluid exhibits unique morphological instabilities. For the pattern studied, these instabilities give rise to the simultaneous, periodic formation of monodisperse droplets of A in B and B in A. The system bifurcates between time-independent behavior and different types of regular, nondecaying oscillations in the structural characteristics. The surprisingly complex behavior is observed even in the absence of hydrodynamic interactions and arises from the interplay between the fluid flow and patterned substrate, which introduces nonlinearity into the dynamical system. |
| first_indexed | 2024-03-07T01:52:25Z |
| format | Journal article |
| id | oxford-uuid:9a91e6bc-11bd-4dd0-b447-98054a70b295 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:52:25Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:9a91e6bc-11bd-4dd0-b447-98054a70b2952022-03-27T00:22:11ZPeriodic droplet formation in chemically patterned microchannels.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9a91e6bc-11bd-4dd0-b447-98054a70b295EnglishSymplectic Elements at Oxford2003Kuksenok, OJasnow, DYeomans, JBalazs, ASimulations show that, when a phase-separated binary AB fluid is driven to flow past chemically patterned substrates in a microchannel, the fluid exhibits unique morphological instabilities. For the pattern studied, these instabilities give rise to the simultaneous, periodic formation of monodisperse droplets of A in B and B in A. The system bifurcates between time-independent behavior and different types of regular, nondecaying oscillations in the structural characteristics. The surprisingly complex behavior is observed even in the absence of hydrodynamic interactions and arises from the interplay between the fluid flow and patterned substrate, which introduces nonlinearity into the dynamical system. |
| spellingShingle | Kuksenok, O Jasnow, D Yeomans, J Balazs, A Periodic droplet formation in chemically patterned microchannels. |
| title | Periodic droplet formation in chemically patterned microchannels. |
| title_full | Periodic droplet formation in chemically patterned microchannels. |
| title_fullStr | Periodic droplet formation in chemically patterned microchannels. |
| title_full_unstemmed | Periodic droplet formation in chemically patterned microchannels. |
| title_short | Periodic droplet formation in chemically patterned microchannels. |
| title_sort | periodic droplet formation in chemically patterned microchannels |
| work_keys_str_mv | AT kuksenoko periodicdropletformationinchemicallypatternedmicrochannels AT jasnowd periodicdropletformationinchemicallypatternedmicrochannels AT yeomansj periodicdropletformationinchemicallypatternedmicrochannels AT balazsa periodicdropletformationinchemicallypatternedmicrochannels |