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Pace and patterns of magnetic swimmers in a billiard pool

Title data

Maier, Florian Johannes ; Sesselmann, Markus ; Rehberg, Ingo ; Richter, Reinhard:
Pace and patterns of magnetic swimmers in a billiard pool.
In: Physical Review E. Vol. 96 (July 2017) Issue 1 . - 012205. - 10 S.
ISSN 1550-2376
DOI: https://doi.org/10.1103/PhysRevE.96.012205

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Abstract in another language

We experimentally investigate magnetic surface swimmers on water. These objects self-assemble from ferromagnetic microparticles and a nonmagnetic disk. They are floating on the liquid surface due to interface tension and move under the influence of a harmonically oscillating homogeneous magnetic field oriented vertically, which is distinguished by its amplitude and frequency. The speed of the surface swimmers strongly depends on these parameters. The functional dependencies between speed and amplitude and between speed and frequency are investigated by independently varying both control parameters. In the first case, the data obtained are in good agreement with the predicted scaling while there are some deviations in the latter case. Moreover, due to the interplay between the surface bound swimmers and the ascending liquid meniscus at the edge of the experimental vessel, different dynamics can be realized. We observe periodic and quasiperiodic trajectories in a circular vessel and aperiodic trajectories in a vessel shaped like a Bunimovich stadium.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Chaos; collective dynamics; fluid-particle interactions; locomotion; swimming
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Profile Fields > Advanced Fields > Nonlinear Dynamics
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 07 Feb 2018 09:01
Last Modified: 04 Dec 2018 10:08
URI: https://eref.uni-bayreuth.de/id/eprint/42202