 |
École polytechnique Open archive |  |
 |
Journal articles
Bouncing, chasing or pausing: asymmetric collisions of active droplets
Abstract : Chemically-active droplets exhibit complex avoiding trajectories. While heterogeneity is inevitable in active matter experiments, it is mostly overlooked in their modelling. Exploiting its geometric simplicity, we fully-resolve the head-on collision of two swimming droplets of different radii and demonstrate that even a small contrast in size critically conditions their collision and subsequent dynamics. We identify three fundamentally-different regimes. The resulting high sensitivity of pairwise collisions is expected to profoundly affect their collective dynamics.
Cited literature [35 references]
https://hal-polytechnique.archives-ouvertes.fr/hal-02536806
Contributor : Sébastien Michelin <>
Submitted on : Wednesday, April 8, 2020 - 12:42:59 PM
Last modification on : Wednesday, May 13, 2020 - 4:28:19 PM
Contributor : Sébastien Michelin <>
Submitted on : Wednesday, April 8, 2020 - 12:42:59 PM
Last modification on : Wednesday, May 13, 2020 - 4:28:19 PM
File
2002.05085.pdf
Files produced by the author(s)