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@ARTICLE{Huang:127332,
author = {Huang, Chien-Cheng and Gompper, Gerhard and Winkler, Roland
G.},
title = {{N}on-equilibrium relaxation and tumbling times of polymers
in semidilute solution},
journal = {Journal of physics / Condensed matter},
volume = {24},
number = {28},
address = {Bristol},
publisher = {IOP Publ.},
reportid = {FZJ-2012-00332},
pages = {284131},
year = {2012},
abstract = {The end-over-end tumbling dynamics of individual polymers
in dilute and semidilute solutions is studied under shear
flow by large-scale mesoscale hydrodynamic simulations.
End-to-end vector relaxation times are determined along the
flow, gradient, and vorticity directions. Along the flow and
gradient directions, the correlation functions decay
exponentially with sinusoidal modulations at short times. In
dilute solution, the decay times of the various directions
are very similar. However, in semidilute solutions, the
relaxation behaviors are rather different along the various
directions, with the longest relaxation time in the
vorticity direction and the shortest time in the flow
direction. The various relaxation times exhibit a power-law
shear-rate dependence with the exponent − 2/3 at high
shear rates. Quantitatively, the relaxation times are equal
to the tumbling times extracted from cross-correlation
functions of fluctuations of radius-of-gyration components
along the flow and gradient direction.},
cin = {IAS-2 / ICS-2},
ddc = {530},
cid = {I:(DE-Juel1)IAS-2-20090406 / I:(DE-Juel1)ICS-2-20110106},
pnm = {451 - Soft Matter Composites (POF2-451)},
pid = {G:(DE-HGF)POF2-451},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000305786400033},
doi = {10.1088/0953-8984/24/28/284131},
url = {https://juser.fz-juelich.de/record/127332},
}