Flocking of active particles in a turbulent flow

Gupta, A and Roy, A and Saha, A and Ray, SS (2020) Flocking of active particles in a turbulent flow. In: Physical Review Fluids, 5 (5).

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Abstract

We investigate the effect of cooperative interactions in an ensemble of microorganisms, modeled as self-propelled disklike and rodlike particles, in a three-dimensional turbulent flow and show flocking and nematic ordering as an emergent phenomenon. Building on the work by Choudhary et al. Europhys. Lett. 112, 24005 (2015)EULEEJ0295-507510.1209/0295-5075/112/24005 for two-dimensional systems, and combining ideas from active matter and turbulent transport, we show that nontrivial correlations between the flow and individual dynamics are essential for the microorganisms to flock in, for example, a turbulent three-dimensional marine environment. Our results may have implications especially in the modeling of artificial microswimmers in a hostile environment. © 2020 American Physical Society.

Item Type:	Journal Article
Publication:	Physical Review Fluids
Publisher:	American Physical Society
Additional Information:	Copyright for this article belongs to American Physical Society.
Keywords:	Microorganisms, Cooperative interactions; Emergent phenomenon; Hostile environments; Individual dynamics; Nontrivial correlations; Three-dimensional turbulent flow; Turbulent transports; Two-dimensional systems, Turbulent flow
Department/Centre:	Division of Electrical Sciences > Computer Science & Automation
Date Deposited:	11 Nov 2021 14:40
Last Modified:	11 Nov 2021 14:40
URI:	http://eprints.iisc.ac.in/id/eprint/66110

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