Emergence of chaos in a viscous solution of rods
arXiv:1705.05223 · doi:10.1103/PhysRevE.96.053108
Abstract
It is shown that the addition of small amounts of microscopic rods in a viscous fluid at low Reynolds number causes a significant increase of the flow resistance. Numerical simulations of the dynamics of the solution reveal that this phenomenon is associated to a transition from laminar to chaotic flow. Polymer stresses give rise to flow instabilities which, in turn, perturb the alignment of the rods. This coupled dynamics results in the activation of a wide range of scales, which enhances the mixing efficiency of viscous flows.
arXiv comment4 pages, 5 figures, 1 table
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Cited by in corpus (5)
- Finite amplitude stability of internal steady flows of the Giesekus viscoelastic rate-type fluid
- Drag enhancement in a dusty Kolmogorov flow
- Enhancement of drag and mixing in a dilute solution of rodlike polymers at low Reynolds numbers
- Interface-induced turbulence in viscous binary fluid mixtures
- Orientational order and topological defects in a dilute solutions of rodlike polymers at low Reynolds number