✦ LIBER ✦
Local Viscosity in the Vicinity of a Wall Coated by Polymer Brush from Green–Kubo Relations
✍ Scribed by Dimitar I. Dimitrov; Andrey Milchev; Kurt Binder
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 372 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1022-1344
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
When fluids are confined in slit pores between parallel walls, their static structures and their dynamical properties exhibit inhomogeneity in the z‐direction perpendicular to the wall. Of particular interest are local bulk viscosity η~b~(z) and shear viscosity η~s~(z). Here, we discuss an algorithm to estimate these quantities from Green–Kubo relations using equilibrium molecular dynamics. As an application example, a polymer brush (macromolecules end‐grafted to a substrate at z = 0) interacting with a solvent formed from point‐like particles is given.
magnified image