Autophoretic locomotion in weakly viscoelastic fluids at finite Péclet number
arXiv:1709.00168 · doi:10.1063/1.5002729
Abstract
In this work, we numerically investigate the dynamics of a self-propelling autophoretic Janus particle in a weakly viscoelastic fluid. The self-propulsion is achieved by an asymmetry in the properties of the surface of the Janus particle that drives a surface slip velocity and bulk flow. Here we investigate the effect of viscoelasticity on this advection-diffusion problem over a range of Péclet and Damköhler numbers. Particles are found to swim faster, or slower, in viscoelastic fluids, and we show how reaction and diffusion rates affect the viscoelastic stresses that lead to changes in propulsion.
arXiv comment10 pages, 9 figures
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Cited by in corpus (8)
- Memory-induced transition from a persistent random walk to circular motion for achiral microswimmers
- Swimming in Complex Fluids
- State diagram of a three-sphere microswimmer in a channel
- Active particles in geometrically confined viscoelastic fluids
- Axisymmetric Squirmers in Stokes Fluid with Nonuniform Viscosity
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