Base flow decomposition for complex moving objects in linear hydrodynamics: Application to helix-shaped flagellated microswimmers.

@article{Zhang2021BaseFD,
  title={Base flow decomposition for complex moving objects in linear hydrodynamics: Application to helix-shaped flagellated microswimmers.},
  author={Ji Zhang and Mauro Chinappi and Luca Biferale},
  journal={Physical review. E},
  year={2021},
  volume={103 2-1},
  pages={
          023109
        }
}
The motion of microswimmers in complex flows is ruled by the interplay between swimmer propulsion and the dynamics induced by the fluid velocity field. Here we study the motion of a chiral microswimmer whose propulsion is provided by the spinning of a helical tail with respect to its body in a simple shear flow. Thanks to an efficient computational strategy that allowed us to simulate thousands of different trajectories, we show that the tail shape dramatically affects the swimmer's motion. In… 

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