Year: 2022
Type: article
Abstract: We numerically investigated the dynamics of a mixture of finite-size active and passive disks in a linear array of two-dimensional convection rolls. The interplay of advection and steric interactions produces a number of interesting effects, like the stirring of a passive colloidal fluid by a small fraction of slow active particles, or the separation of the mixture active and passive colloidal fractions by increasing the motility of the active one, which eventually clusters in stagnation areas along the array walls. These mechanisms are quantitatively characterized by studying the dependence of the diffusion constants of the active and passive particles on the parameters of the active mixture fraction.
Source: ChemPhysChem
Language: English
Topic: Micro and Nano Robotics
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, Foundational Questions Institute, Asian Office of Aerospace Research and Development, Japan Society for the Promotion of Science London, Japan Society for the Promotion of Science, Science and Engineering Research Board, Japan Science and Technology Agency, RIKEN, Moonshot Research and Development Program, Army Research Office
OpenAlex ID: W4297855417