Comparison of nonequilibrium molecular dynamics with experimental measurements in the nonlinear shear-thinning regime

被引：122

作者：

Bair, S

McCabe, C ^{[1
]}

Cummings, PT

机构：

[1] Univ Tennessee, Dept Chem Engn, Knoxville, TN 37996 USA

[2] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Tribol & Rheol Lab, Atlanta, GA 30332 USA

[3] Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN 37831 USA

[4] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

[5] Univ Tennessee, Dept Comp Sci, Knoxville, TN 37996 USA

[6] Colorado Sch Mines, Dept Chem Engn, Golden, CO 80401 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.88.058302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nonequilibrium molecular dynamics of a low-molecular-weight fluid (squalane) are compared with experimental measurements in both the linear (Newtonian) and nonlinear (non-Newtonian) regimes. The experimental and simulation data are shown to follow the same time-temperature superposition master curve. This represents the first comparison of the nonlinear rheology predicted by nonequilibrium molecular dynamics with experiment, and is thus the first experimental test of nonequilibrium molecular dynamics simulations in the nonlinear regime.

引用

页码：583021 / 583024

页数：4

共 19 条

[1] DENSE-FLUID SHEAR VISCOSITY VIA NONEQUILIBRIUM MOLECULAR-DYNAMICS [J].