Nonequilibrium molecular dynamics simulations of n‐butane for an increased system size and longer computational runs have been extended to both lower and higher shear rates. Results from these simulations are considerably more accurate than those previously reported in the literature and an alternative rheological interpretation of them is proposed.

1.
R.
Edberg
,
G. P.
Morriss
, and
D. J.
Evans
,
J. Chem. Phys.
86
,
4555
(
1987
).
2.
D. N. J.
White
and
M. J.
Bovill
,
J. Chem. Soc. Perkin II
1977
,
1610
(
1977
).
3.
S.
Chynoweth
,
U. C.
Klomp
, and
L. E.
Scales
,
Comp. Phys. Comm.
62
,
297
(
1991
).
4.
A. Berker, S. Chynoweth, U. C. Klomp, and Y. Michopoulos (unpublished).
5.
D. J.
Evans
,
G. P.
Morriss
, and
L. M.
Hood
,
Mol. Phys.
68
,
637
(
1989
).
6.
D. D. Joseph, Fluid Dynamics of Viscoelastic Liquids (Springer-Verlag, New York, 1990).
7.
R. B. Bird, R. C. Amstrong, and O. Hassager, Dynamics of Polymeric Liquids, Vol. 1: Fluid Mechanics, 2nd ed. (Wiley, New York, 1987).
8.
C. V. Vinogradov and A. Ya. Malkin, Rheology of Polymers (Springer-Verlag, Berlin 1980).
9.
K. Stephan and K. Lucas, Viscosity of Dense Fluids (Plenum, New York, 1979).
10.
G.
Marechal
and
J. P.
Ryckaert
,
Chem. Phys. Lett.
101
,
548
(
1983
).
This content is only available via PDF.