Corpus ID: 237571818

How inertial lift affects the dynamics of a microswimmer in Poiseuille flow

@inproceedings{Choudhary2021HowIL,
  title={How inertial lift affects the dynamics of a microswimmer in Poiseuille flow},
  author={Akash Choudhary and Subhechchha Paul and Felix Ruhle and Holger Stark},
  year={2021}
}
We analyze the dynamics of a microswimmer in pressure-driven Poiseuille flow, where fluid inertia is small but non-negligible. Using perturbation theory and the reciprocal theorem, we show that in addition to the classical inertial lift of passive particles, the active nature generates a ‘swimming lift’, which we evaluate for neutral and pusher/puller-type swimmers. Accounting for fluid inertia engenders a rich spectrum of novel complex dynamics including bistable states, where tumbling… Expand

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