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Hydrodynamic suppression of phase separation in active suspensions

Abstract:

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...

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Publisher copy:
10.1103/PhysRevE.90.032304

Authors


Matas-Navarro, R More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Liverpool, TB More by this author
Fielding, SM More by this author
Publisher:
American Physical Society
Journal:
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume:
90
Issue:
3
Publication date:
2014-09-18
DOI:
EISSN:
1550-2376
ISSN:
1539-3755
URN:
uuid:2716e595-0cc2-46f9-a1c9-26a3f173ad14
Source identifiers:
485763
Local pid:
pubs:485763
Language:
English

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