Metachronal coordination at the mesoscale

Autor: Ziegler, Sebastian, Delens, Megan, Collard, Ylona, Hubert, Maxime, Vandewalle, Nicolas, Smith, Ana-Sunčana
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: In nature, metachronal coordination is an efficient strategy for fluid pumping and self-propulsion. Yet, mimetic systems for this type of organization are scarce. Recently, metachronal motion was observed in a bead-based magnetocapillary mesoswimmer, but the mechanism of such device's behavior remained unclear. Here, we combine theory and experiments to explain two swimming regimes that we identify by modulation of the driving frequency. In the linear, low-frequency regime, the swimmer motion originates from individual bead rotations. However, the high-frequency, metachronal regime is dominated by deformations of the device near a mechanical resonance, which highlights the role of bead inertia for optimized self-propulsion.
Comment: Article: 6 pages, 3 figures; Supplementary information: 5 pages, 8 figures
Databáze: arXiv