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@ARTICLE{Mo:903714,
author = {Mo, Chaojie and Fedosov, Dmitry A.},
title = {{C}ompeting effects of inertia, sheet elasticity, fluid
compressibility, and viscoelasticity on the synchronization
of two actuated sheets},
journal = {Physics of fluids},
volume = {33},
number = {4},
issn = {1070-6631},
address = {[S.l.]},
publisher = {American Institute of Physics},
reportid = {FZJ-2021-05354},
pages = {043109},
year = {2021},
abstract = {Synchronization of two actuated sheets serves as a simple
model for the interaction between flagellated microswimmers.
Various factors, including inertia, sheet elasticity, and
fluid viscoelasticity, have been suggested to facilitate the
synchronization of two sheets; however, the importance of
different contributions to this process still remains
unclear. We perform a systematic investigation of competing
effects of inertia, sheet elasticity, fluid compressibility,
and viscoelasticity on the synchronization of two sheets.
Characteristic time 𝜏s for the synchronization caused by
inertial effects is inversely proportional to sheet Reynolds
number Re, such that 𝜏s𝜔∝Re−1 with ω being the
wave frequency. Synchronization toward stable in-phase or
opposite-phase configuration of two sheets is determined by
the competition of inertial effects, sheet elasticity, fluid
compressibility, and viscoelasticity. Interestingly, fluid
viscoelasticity results in strong synchronization forces for
large beating amplitudes and Deborah numbers De > 1,
which dominates over other factors and favors the in-phase
configuration. Therefore, our results show that fluid
viscoelasticity can dramatically enhance synchronization of
microswimmers. Our investigation deciphers the importance of
different competing effects for the synchronization of two
actuated sheets, leading to a better understanding of
interactions between microswimmers and their collective
behavior.},
cin = {IBI-5},
ddc = {530},
cid = {I:(DE-Juel1)IBI-5-20200312},
pnm = {5241 - Molecular Information Processing in Cellular Systems
(POF4-524)},
pid = {G:(DE-HGF)POF4-5241},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000642185700001},
doi = {10.1063/5.0049099},
url = {https://juser.fz-juelich.de/record/903714},
}