Hydrodynamic suppression of phase separation in active suspensions
We simulate with hydrodynamics a suspension of active disks squirming through a Newtonian fluid. We explore numerically the full range of squirmer area fractions from dilute to close packed and show that "motility induced phase separation," which was recently proposed to arise generically...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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American Physical Society
2014
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| _version_ | 1797059169960853504 |
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| author | Matas-Navarro, R Golestanian, R Liverpool, T Fielding, S |
| author_facet | Matas-Navarro, R Golestanian, R Liverpool, T Fielding, S |
| author_sort | Matas-Navarro, R |
| collection | OXFORD |
| description | We simulate with hydrodynamics a suspension of active disks squirming through a Newtonian fluid. We explore numerically the full range of squirmer area fractions from dilute to close packed and show that "motility induced phase separation," which was recently proposed to arise generically in active matter, and which has been seen in simulations of active Brownian disks, is strongly suppressed by hydrodynamic interactions. We give an argument for why this should be the case and support it with counterpart simulations of active Brownian disks in a parameter regime that provides a closer counterpart to hydrodynamic suspensions than in previous studies. |
| first_indexed | 2024-03-06T20:00:23Z |
| format | Journal article |
| id | oxford-uuid:2716e595-0cc2-46f9-a1c9-26a3f173ad14 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:00:23Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:2716e595-0cc2-46f9-a1c9-26a3f173ad142022-03-26T12:04:43ZHydrodynamic suppression of phase separation in active suspensionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2716e595-0cc2-46f9-a1c9-26a3f173ad14EnglishSymplectic Elements at OxfordAmerican Physical Society2014Matas-Navarro, RGolestanian, RLiverpool, TFielding, SWe simulate with hydrodynamics a suspension of active disks squirming through a Newtonian fluid. We explore numerically the full range of squirmer area fractions from dilute to close packed and show that "motility induced phase separation," which was recently proposed to arise generically in active matter, and which has been seen in simulations of active Brownian disks, is strongly suppressed by hydrodynamic interactions. We give an argument for why this should be the case and support it with counterpart simulations of active Brownian disks in a parameter regime that provides a closer counterpart to hydrodynamic suspensions than in previous studies. |
| spellingShingle | Matas-Navarro, R Golestanian, R Liverpool, T Fielding, S Hydrodynamic suppression of phase separation in active suspensions |
| title | Hydrodynamic suppression of phase separation in active suspensions |
| title_full | Hydrodynamic suppression of phase separation in active suspensions |
| title_fullStr | Hydrodynamic suppression of phase separation in active suspensions |
| title_full_unstemmed | Hydrodynamic suppression of phase separation in active suspensions |
| title_short | Hydrodynamic suppression of phase separation in active suspensions |
| title_sort | hydrodynamic suppression of phase separation in active suspensions |
| work_keys_str_mv | AT matasnavarror hydrodynamicsuppressionofphaseseparationinactivesuspensions AT golestanianr hydrodynamicsuppressionofphaseseparationinactivesuspensions AT liverpoolt hydrodynamicsuppressionofphaseseparationinactivesuspensions AT fieldings hydrodynamicsuppressionofphaseseparationinactivesuspensions |