Self-propelled Brownian spinning top: dynamics of a biaxial swimmer at low Reynolds numbers.

  title={Self-propelled Brownian spinning top: dynamics of a biaxial swimmer at low Reynolds numbers.},
  author={Raphael Wittkowski and Hartmut L{\"o}wen},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={85 2 Pt 1},
  • R. WittkowskiH. Löwen
  • Published 10 October 2011
  • Engineering, Physics
  • Physical review. E, Statistical, nonlinear, and soft matter physics
Recently the Brownian dynamics of self-propelled (active) rodlike particles was explored to model the motion of colloidal microswimmers, catalytically driven nanorods, and bacteria. Here we generalize this description to biaxial particles with arbitrary shape and derive the corresponding Langevin equation for a self-propelled Brownian spinning top. The biaxial swimmer is exposed to a hydrodynamic Stokes friction force at low Reynolds numbers, to fluctuating random forces and torques as well as… 

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