Interaction between swarming active matter and flow: The impact on Lagrangian coherent structures
Physical Review Fluids2024Vol. 9(3)
Citations Over TimeTop 11% of 2024 papers
Abstract
We find that the impact of active matter on Lagrangian coherent structures (LCSs) was much more significant compared to localized random noise with similar energy. This is because the perturbation generated by active matter could couple with the background flow and further deform the LCSs. In addition, rotational elliptical regions of the flow were much more susceptible to active matter perturbation than the hyperbolic regions. Lastly, we revealed that the LCSs could be decently altered even at a small number density of active matter.
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