2016/12/01 by Norihiro Oyama, Oyama, Norihiro, John J. Molina +3
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Innovative Microfluidic and Catalytic Techniques Innovation #Micro and Nano Robotics #Soft Condensed Matter (cond-mat.soft) #Surface Modification and Superhydrophobicity
paper · pdf · doi:10.48550/arxiv.1612.00135
openalex publication_date 2016/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the dynamics of model microswimmers under confinement, in cylindrical geometries, by means of three dimensional direct numerical calculations with fully resolved hydrodynamics. Such swimmers are known to show collective alignment in bulk, and we confirmed that similar alignment can be observed even in pipes, although the volume fraction dependency shows qualitative differences. By comparing the structural information, we investigated the cause of such differences. We found an order/disorder phase transition for a specific type of swimmers, as the size of the pipe becomes comparable to the size of the swimmers. Such dynamics are found not to depend on the geometry of confinement.