A review of the second normal-stress difference; its importance in various flows, measurement techniques, results for various complex fluids and theoretical predictions

O Maklad, RJ Poole - Journal of Non-Newtonian Fluid Mechanics, 2021 - Elsevier
Shear flow is ubiquitous. Not only is it arguably the most widely-used deformation type to
characterise complex fluids in rheological studies but also, in practice, the deformation most …

Nonlinear shear rheometry: Brief history, recent progress, and challengesa) This manuscript was handled by Editorial Board Member RH Colby.

S Costanzo, D Parisi, T Schweizer… - Journal of Rheology, 2024 - pubs.aip.org
High-shear rate rotational rheometry provides access to the fast nonlinear dynamics of soft
materials and, particularly, their shear stress (exhibiting shear thinning and/or thickening) as …

[图书][B] Techniques in rheological measurement

AA Collyer - 1993 - Springer
In an earlier book, Rheological Measurement (AA Collyer & DW Clegg, Elsevier Applied
Science, 1988), the basic rheological methods of measurement presently used were …

Segment connectivity, chain-length breathing, segmental stretch, and constraint release in reptation models. I. Theory and single-step strain predictions

CC Hua, JD Schieber - The Journal of chemical physics, 1998 - pubs.aip.org
A self-consistent reptation theory that accounts for chain-tube interactions, segment
connectivity, chain-length breathing, segmental stretch, and constraint release is proposed …

[图书][B] The mesoscopic theory of polymer dynamics

VN Pokrovskii - 2002 - Springer
Here, the sum is conducted over all the particles in a given macromolecule. Assuming that
all the macromolecules are identical, and neglecting the statistical dependence of the …

Edge fracture in cone-plate and parallel plate flows

M Keentok, SC Xue - Rheologica acta, 1999 - Springer
Edge fracture is an instability of cone-plate and parallel plate flows of viscoelastic liquids
and suspensions, characterised by the formation of acrack'or indentation at a critical shear …

Micropropulsion and microrheology in complex fluids via symmetry breaking

OS Pak, LL Zhu, L Brandt, E Lauga - Physics of fluids, 2012 - pubs.aip.org
Many biological fluids have polymeric microstructures and display non-Newtonian rheology.
We take advantage of such nonlinear fluid behavior and combine it with geometrical …

Measurement of the first and second normal stress differences in a polystyrene melt with a cone and partitioned plate tool

T Schweizer - Rheologica acta, 2002 - Springer
Step shear rate experiments in the range of 0.1< ̇ γ< 30s^-1 (0.14< Wi< 42) were
performed with a PS 158K melt at 190° C. A cone (gap angle= 0.148 rad) and partitioned …

Measuring and assessing first and second normal stress differences of polymeric fluids with a modular cone-partitioned plate geometry

S Costanzo, G Ianniruberto, G Marrucci… - Rheologica Acta, 2018 - Springer
We propose a simple, robust method to measure both the first and second normal stress
differences of polymers, hence obtaining the full set of viscometric material functions in …

Nonlinear shear rheology of polystyrene melt with narrow molecular weight distribution—Experiment and theory

T Schweizer, J van Meerveld, HC Öttinger - Journal of rheology, 2004 - pubs.aip.org
Measurements of the shear viscosity and the first and second normal stress coefficients are
shown at 175° C for a nearly monodisperse polystyrene melt with M w= 200 kg/mol (PS 200 …