Boundaries control active channel flows

  title={Boundaries control active channel flows},
  author={Paarth Gulati and Suraj Shankar and M. Cristina Marchetti},
  booktitle={Frontiers in Physics},
Boundary conditions dictate how fluids, including liquid crystals, flow when pumped through a channel. Can boundary conditions also be used to control internally driven active fluids that generate flows spontaneously? By using numerical simulations and stability analysis we explore how parallel surface anchoring of active agents at the boundaries and substrate drag can be used to rectify coherent flow of an active polar fluid in a 2D channel. Upon increasing activity, a succession of dynamical… 

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