ArticleScience advances2022
Confinement, chaotic transport, and trapping of active swimmers in time-periodic flows.
Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 14 citations in OpenAlex.
- Direct observation and quantitative characterization of chemotactic behaviors in Caribbean coral larvae exposed to organic and inorganic settlement cues.Scientific reports · 2025Article
- Multiorifice acoustic microrobot for boundary-free multimodal 3D swimming.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
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Abstract
Microorganisms encounter complex unsteady flows, including algal blooms in marine settings, microbial infections in airways, and bioreactors for vaccine and biofuel production. Here, we study the transport of active swimmers in two-dimensional time-periodic flows using Langevin simulations and experiments with swimming bacteria. We find that long-term swimmer transport is controlled by two parameters, the pathlength of the unsteady flow and the normalized swimmer speed. The pathlength nonmonotonically controls swimmer dispersion dynamics, giving rise to three distinct dispersion regimes. Weak flows hinder swimmer transport by confining cells toward flow manifolds. As pathlength increases, chaotic transport along flow manifolds initiates, maximizing the number of unique flow cells traveled. Last, strong flows trap swimmers at the vortex core, suppressing dispersal. Experiments with
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Registered trials
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