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Immersed boundary simulations of active fluid droplets
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Whitfield, Carl A. and Hawkins, Rhoda J. (2016) Immersed boundary simulations of active fluid droplets. PLoS One, 11 (9). e0162474. doi:10.1371/journal.pone.0162474 ISSN 1932-6203.
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Official URL: http://dx.doi.org/10.1371/journal.pone.0162474
Abstract
We present numerical simulations of active fluid droplets immersed in an external fluid in 2-dimensions using an Immersed Boundary method to simulate the fluid droplet interface as a Lagrangian mesh. We present results from two example systems, firstly an active isotropic fluid boundary consisting of particles that can bind and unbind from the interface and generate surface tension gradients through active contractility. Secondly, a droplet filled with an active polar fluid with homeotropic anchoring at the droplet interface. These two systems demonstrate spontaneous symmetry breaking and steady state dynamics resembling cell motility and division and show complex feedback mechanisms with minimal degrees of freedom. The simulations outlined here will be useful for quantifying the wide range of dynamics observable in these active systems and modelling the effects of confinement in a consistent and adaptable way.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QH Natural history | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Library of Congress Subject Headings (LCSH): | Cells -- Motility -- Simulation -- Mathematical models, Cell division -- Simulation -- Mathematical models | ||||||||
Journal or Publication Title: | PLoS One | ||||||||
Publisher: | Public Library of Science | ||||||||
ISSN: | 1932-6203 | ||||||||
Official Date: | 8 September 2016 | ||||||||
Dates: |
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Volume: | 11 | ||||||||
Number: | 9 | ||||||||
Article Number: | e0162474 | ||||||||
DOI: | 10.1371/journal.pone.0162474 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 27 February 2017 | ||||||||
Date of first compliant Open Access: | 27 February 2017 | ||||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||||||
Grant number: | EP/K503149/1 | ||||||||
RIOXX Funder/Project Grant: |
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