Axisymmetric squirmers in Stokes fluid with nonuniform viscosity

  title={Axisymmetric squirmers in Stokes fluid with nonuniform viscosity},
  author={P. S. Eastham and Kourosh Shoele},
  journal={arXiv: Fluid Dynamics},
The ciliary locomotion and feeding of an axisymmetric micro-swimmer in a complex fluid whose viscosity depends on nutrient concentration are investigated numerically. The micro-swimmer is modeled as having spheroidal geometry, and ciliary beating is modeled by a slip velocity; i.e. a squirmer is adapted. Looking at the coupling between swimming and feeding of spheroidal squirmers, it is found that swimming speed and feeding are most affected by a non-uniform viscosity environment when the ratio… 
The effect of particle geometry on squirming through a shear-thinning fluid
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  • S. PazG. Buscaglia
  • Physics
    Journal of the Brazilian Society of Mechanical Sciences and Engineering
  • 2020
Squirmers are models of a class of microswimmers, such as ciliated organisms and phoretic particles, that self-propel in fluids without significant deformation of their body shape. Available
Geometric phase methods with Stokes theorem for a general viscous swimmer
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Analysis of the swimming of microscopic organisms
  • G. Taylor
  • Physics
    Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
  • 1951
Large objects which propel themselves in air or water make use of inertia in the surrounding fluid. The propulsive organ pushes the fluid backwards, while the resistance of the body gives the fluid a