• Corpus ID: 118680302

Orbits of swimmers around obstacles

  title={Orbits of swimmers around obstacles},
  author={Dario Papavassiliou and Gareth P. Alexander},
  journal={arXiv: Fluid Dynamics},
We present a two dimensional model of hydrodynamic interaction between a circular swimmer and a circular post at low Reynolds number, using a point singularity description of the swimming activity. We derive a nonlinear dynamical system fully describing the motion and discuss the generic features of the phase portrait and typical trajectories for a variety of squirmer modes. Contractile swimmers exhibit stable bound orbits arising from the contrasting nature of monopolar and dipolar squirmer… 
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