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Paper   IPM / Physic / 12969
School of Physics
  Title:   Three-sphere Magnetic Swimmer in a Shear Flow
  Author(s): 
1.  M. Taghiloo
2.  M. Miri
  Status:   Published
  Journal: Phys. Rev. E
  Vol.:  88
  Year:  2013
  Pages:   023008
  Supported by:  IPM
  Abstract:
We consider a low-Reynolds-number swimmer made from three spheres linked by two slender arms, and explore its motion in a shear flow. This rodlike three-sphere swimmer finally follows the direction dictated by the shear flow. To overcome this shortcoming, we propose a model in which the two outer spheres have permanent magnetic moments along the arms. This magnetic swimmer can be navigated to a desired direction by applying an external static and uniform magnetic field.

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