Abstract
Fish schooling is often modeled with self-propelled particles subject to phenomenological behavioral rules. Although fish are known to sense and exploit flow features, these models usually neglect hydrodynamics. Here, we propose a novel model that couples behavioral rules with far-field hydrodynamic interactions. We show that (1) a new “collective turning” phase emerges, (2) on average, individuals swim faster thanks to the fluid, and (3) the flow enhances behavioral noise. The results of this model suggest that hydrodynamic effects should be considered to fully understand the collective dynamics of fish.
- Received 22 May 2017
- Revised 14 March 2018
DOI:https://doi.org/10.1103/PhysRevLett.120.198101
© 2018 American Physical Society
Physics Subject Headings (PhySH)
Focus
Fluid Interactions Help Fish in a School Swim Faster
Published 11 May 2018
Simulations of fish schools that include fluid dynamics in addition to the usual coordination of individuals lead to faster swimmers and reveal a new collective swimming mode.
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