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@ARTICLE{Mecke:1006972,
author = {Mecke, Joscha and Ripoll, Marisol},
title = {{B}irotor hydrodynamic microswimmers: {F}rom single to
collective behaviour(a)},
journal = {epl},
volume = {142},
number = {2},
issn = {0295-5075},
address = {Les Ulis},
publisher = {EDP Sciences},
reportid = {FZJ-2023-01923},
pages = {27001},
year = {2023},
abstract = {A microswimmer composed of two oppositely rotating strongly
coupled colloids in solution is here termed as birotor and
investigated by means of hydrodynamic simulations. The
related flow fields, swimmer velocities, and rotational
diffusion are controlled by the properties of the fluid, the
swimmer geometry, rotation frequency, and also by the
substrate friction. Resulting from mutual hydrodynamic and
steric interactions, birotor pairs might follow one another,
or more frequently rotate around each other. For larger
number of interacting swimmers the continuous formation and
dissolution of small and rotating aggregates dominates the
collective dynamics. The birotors motion is hydrodynamically
enhanced at short distances, such that the average velocity
of the swimmers shows to increase with density for the
investigated range of densities. This is compensated by a
decrease of rotational diffusive time, making that the
overall effective diffusion decreases with density. These
results constitute the first systematic analysis of the
birotor microswimmer, which could be also further modified
as an easy to manipulate active particle for various
potential applications.},
cin = {IBI-5 / IAS-2},
ddc = {530},
cid = {I:(DE-Juel1)IBI-5-20200312 / I:(DE-Juel1)IAS-2-20090406},
pnm = {5243 - Information Processing in Distributed Systems
(POF4-524)},
pid = {G:(DE-HGF)POF4-5243},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000971126100001},
doi = {10.1209/0295-5075/acc8f8},
url = {https://juser.fz-juelich.de/record/1006972},
}