Mixing by Unstirring: Hyperuniform Dispersion of Interacting Particles upon Chaotic Advection
arXiv:1702.02395 · doi:10.1103/PhysRevLett.119.048002
Abstract
We show how to achieve both fast and hyperuniform dispersions of particles in viscous fluids. To do so, we first extend the concept of critical random organization to chaotic drives. We show how palindromic sequences of chaotic advection cause microscopic particles to effectively interact at long range thereby inhibiting critical self-organization. Based on this understanding we go around this limitation and design sequences of stirring and unstirring which simultaneously optimize the speed of particle spreading and the homogeneity of the resulting dispersions.
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