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@ARTICLE{Mller:172228,
author = {Müller, Kathrin and Fedosov, Dmitry A. and Gompper,
Gerhard},
title = {{S}moothed dissipative particle dynamics with angular
momentum conservation},
journal = {Journal of computational physics},
volume = {281},
issn = {0021-9991},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {FZJ-2014-05716},
pages = {301 - 315},
year = {2015},
abstract = {Smoothed dissipative particle dynamics (SDPD) combines two
popular mesoscopic techniques, the smoothed particle
hydrodynamics and dissipative particle dynamics (DPD)
methods, and can be considered as an improved dissipative
particle dynamics approach. Despite several advantages of
the SDPD method over the conventional DPD model, the
original formulation of SDPD by Español and Revenga (2003)
[9], lacks angular momentum conservation, leading to
unphysical results for problems where the conservation of
angular momentum is essential. To overcome this limitation,
we extend the SDPD method by introducing a particle spin
variable such that local and global angular momentum
conservation is restored. The new SDPD formulation (SDPD+a)
is directly derived from the Navier–Stokes equation for
fluids with spin, while thermal fluctuations are
incorporated similarly to the DPD method. We test the new
SDPD method and demonstrate that it properly reproduces
fluid transport coefficients. Also, SDPD with angular
momentum conservation is validated using two problems: (i)
the Taylor–Couette flow with two immiscible fluids and
(ii) a tank-treading vesicle in shear flow with a viscosity
contrast between inner and outer fluids. For both problems,
the new SDPD method leads to simulation predictions in
agreement with the corresponding analytical theories, while
the original SDPD method fails to capture properly physical
characteristics of the systems due to violation of angular
momentum conservation. In conclusion, the extended SDPD
method with angular momentum conservation provides a new
approach to tackle fluid problems such as multiphase flows
and vesicle/cell suspensions, where the conservation of
angular momentum is essential.},
cin = {IAS-2 / ICS-2},
ddc = {530},
cid = {I:(DE-Juel1)IAS-2-20090406 / I:(DE-Juel1)ICS-2-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551)},
pid = {G:(DE-HGF)POF3-551},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000346429300017},
doi = {10.1016/j.jcp.2014.10.017},
url = {https://juser.fz-juelich.de/record/172228},
}