Molecular simulations of soft matter systems have been performed in recent years using a variety of systematically coarse-grained models. With these models, structural or thermodynamic properties can be quite accurately represented while the prediction of dynamic properties remains difficult, especially for multi-component systems. In this work, we use constraint molecular dynamics simulations for calculating dissipative pair forces which are used together with conditional reversible work (CRW) conservative forces in dissipative particle dynamics (DPD) simulations. The combined CRW-DPD approach aims to extend the representability of CRW models to dynamic properties and uses a bottom-up approach. Dissipative pair forces are derived from fluctuations of the direct atomistic forces between mapped groups. The conservative CRW potential is obtained from a similar series of constraint dynamics simulations and represents the reversible work performed to couple the direct atomistic interactions between the mapped atom groups. Neopentane, tetrachloromethane, cyclohexane, and n-hexane have been considered as model systems. These molecular liquids are simulated with atomistic molecular dynamics, coarse-grained molecular dynamics, and DPD. We find that the CRW-DPD models reproduce the liquid structure and diffusive dynamics of the liquid systems in reasonable agreement with the atomistic models when using single-site mapping schemes with beads containing five or six heavy atoms. For a two-site representation of n-hexane (3 carbons per bead), time scale separation can no longer be assumed and the DPD approach consequently fails to reproduce the atomistic dynamics.

1.
E.
Brini
,
E. A.
Algaer
,
P.
Ganguly
,
C.
Li
,
F.
Rodríguez-Ropero
, and
N. F. A.
van der Vegt
,
Soft Matter
9
,
2108
(
2013
).
2.
C.
Peter
and
K.
Kremer
,
Faraday Discuss.
144
,
9
(
2010
).
3.
D.
Reith
,
M.
Pütz
, and
F.
Müller-Plathe
,
J. Comput. Phys.
24
,
1624
(
2003
).
4.
A.
Lyubartsev
and
A.
Laaksonen
,
Phys. Rev. E
52
,
3730
(
1995
).
5.
S.
Izvekov
and
G. A.
Voth
,
J. Phys. Chem. B
109
,
2469
(
2005
).
6.
D.
Fritz
,
V. A.
Harmandaris
,
K.
Kremer
, and
N. F. A.
van der Vegt
,
Macromolecules
42
,
7579
(
2009
).
7.
P.
Ganguly
,
D.
Mukherji
,
C.
Junghans
, and
N. F. A.
van der Vegt
,
J. Chem. Theory Comput.
8
,
1802
(
2012
).
8.
E.
Brini
,
V.
Marcon
, and
N. F. A.
van der Vegt
,
Phys. Chem. Chem. Phys.
13
,
10468
(
2011
).
9.
M. S.
Shell
,
J. Chem. Phys.
129
,
144108
(
2008
).
10.
R. L. C.
Akkermans
,
J. Chem. Phys.
128
,
244904
(
2008
).
11.
J. R.
Allison
,
S.
Riniker
, and
W. F.
van Gunsteren
,
J. Chem. Phys.
136
,
054505
(
2012
).
12.
S. J.
Marrink
,
H. J.
Risselada
,
S.
Yefimov
,
D. P.
Tieleman
, and
A. H.
de Vries
,
J. Phys. Chem. B
111
,
7812
(
2007
).
13.
W. G.
Noid
,
J.-W.
Chu
,
G. S.
Ayton
,
V.
Krishna
,
S.
Izvekov
,
G. A.
Voth
,
A.
Das
, and
H. C.
Andersen
,
J. Chem. Phys.
128
,
244114
(
2008
).
14.
Q.
Wang
,
D. J.
Keffer
,
D. M.
Nicholson
, and
J. B.
Thomas
,
Phys. Rev. E
81
,
061204
(
2010
).
15.
D.
Fritz
,
K.
Koschke
,
V. A.
Harmandaris
,
N. F. A.
van der Vegt
, and
K.
Kremer
,
Phys. Chem. Chem. Phys.
13
,
10412
(
2011
).
16.
S.
Izvekov
and
G. A.
Voth
,
J. Chem. Phys.
125
,
151101
(
2006
).
17.
W.
Tschöp
,
K.
Kremer
,
J.
Batoulis
,
T.
Bürger
, and
O.
Hahn
,
Acta Polym.
49
,
61
(
1998
).
18.
V. A.
Harmandaris
and
K.
Kremer
,
Macromolecules
42
,
791
(
2009
).
19.
P. J.
Hoogerbrugge
and
J. M. V. A.
Koelman
,
Europhys. Lett.
19
,
155
(
1992
).
20.
J. M. V. A.
Koelman
and
P. J.
Hoogerbrugge
,
Europhys. Lett.
21
,
363
(
1993
).
21.
R. D.
Groot
and
P. B.
Warren
,
J. Chem. Phys.
107
,
4423
(
1997
).
22.
Y.
Yoshimoto
,
I.
Kinefuchi
,
T.
Mima
,
A.
Fukushima
,
T.
Tokumasu
, and
S.
Takagi
,
Phys. Rev. E
88
,
043305
(
2013
).
23.
A.
Eriksson
,
M. N.
Jacobi
,
J.
Nyström
, and
K.
Tunstrøm
,
J. Phys. Condens. Matter
21
,
095401
(
2009
).
24.
H.
Lei
,
B.
Caswell
, and
G. E.
Karniadakis
,
Phys. Rev. E
81
,
026704
(
2010
).
25.
A.
Eriksson
,
M. N.
Jacobi
,
J.
Nyström
, and
K.
Tunstrøm
,
J. Chem. Phys.
129
,
024106
(
2008
).
26.
A.
Eriksson
,
M. N.
Jacobi
,
J.
Nyström
, and
K.
Tunstrøm
,
J. Chem. Phys.
130
,
164509
(
2009
).
27.
L.
Gao
and
W.
Fang
,
J. Chem. Phys.
135
,
184101
(
2011
).
28.
S.
Izvekov
and
B. M.
Rice
,
J. Chem. Phys.
140
,
104104
(
2014
).
29.
C.
Hijón
,
P.
Español
,
E.
Vanden-Eijnden
, and
R.
Delgado-Buscalioni
,
Faraday Discuss.
144
,
301
(
2010
).
30.
R. L. C.
Akkermans
and
W. J.
Briels
,
J. Chem. Phys.
113
,
6409
(
2000
).
31.
S.
Trément
,
B.
Schnell
,
L.
Petitjean
,
M.
Couty
, and
B.
Rousseau
,
J. Chem. Phys.
140
,
134113
(
2014
).
32.
E.
Brini
and
N. F. A.
van der Vegt
,
J. Chem. Phys.
137
,
154113
(
2012
).
33.
E.
Brini
,
C. R.
Herbers
,
G.
Deichmann
, and
N. F. A.
van der Vegt
,
Phys. Chem. Chem. Phys.
14
,
11896
(
2012
).
34.
C.
Junghans
,
M.
Praprotnik
, and
K.
Kremer
,
Soft Matter
4
,
156
(
2008
).
35.
P.
Español
and
P.
Warren
,
Europhys. Lett.
30
,
191
(
1995
).
36.
B.
Hess
,
C.
Kutzner
,
D.
van der Spoel
, and
E.
Lindahl
,
J. Chem. Theory Comput.
4
,
435
(
2008
).
37.
W. L.
Jorgensen
,
D. S.
Maxwell
, and
J.
Tirado-Rives
,
J. Am. Chem. Soc.
118
,
11225
(
1996
).
38.
W. F.
van Gunsteren
and
H. J. C.
Berendsen
,
Mol. Simul.
1
,
173
(
1988
).
39.
S.
Plimpton
,
J. Comput. Phys.
117
,
1
(
1995
).
You do not currently have access to this content.