The rheology of n alkanes : decane and eicosane

We examine the rheological behavior of n alkanes, in particular n decane (C10H22) and n eicosane (C20H42). We observe, for the first time in a molecular dynamics simulation, the phenomenon of shear thickening. Over the accessible range of strain rates we see a regime of shear thinning, and then shea...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 1991-06, Vol.94 (11), p.7420-7433
Main Authors: MORRISS, G. P, DAIVIS, P. J, EVANS, D. J
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Heterogeneous liquids: suspensions, dispersions, emulsions, pastes, slurries, foams, block copolymers, etc
Material form
Physics
Rheology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We examine the rheological behavior of n alkanes, in particular n decane (C10H22) and n eicosane (C20H42). We observe, for the first time in a molecular dynamics simulation, the phenomenon of shear thickening. Over the accessible range of strain rates we see a regime of shear thinning, and then shear thickening in both fluids. The transition from shear thinning to shear thickening is correlated with a qualitative change in the single molecule properties; in particular the distribution of alignment angles and end-to-end distances.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.460174