Perspectives on viscoelastic flow instabilities and elastic turbulence

SS Datta, AM Ardekani, PE Arratia, AN Beris… - Physical Review …, 2022 - APS
Viscoelastic fluids are a common subclass of rheologically complex materials that are
encountered in diverse fields from biology to polymer processing. Often the flows of …

[HTML][HTML] The elasticity of polymer melts and solutions in shear and extension flows

AV Subbotin, AY Malkin, VG Kulichikhin - Polymers, 2023 - mdpi.com
This review is devoted to understanding the role of elasticity in the main flow modes of
polymeric viscoelastic liquids—shearing and extension. The flow through short capillaries is …

When elasticity affects drop coalescence

PJ Dekker, MA Hack, W Tewes, C Datt, A Bouillant… - Physical review …, 2022 - APS
The breakup and coalescence of drops are elementary topological transitions in interfacial
flows. The breakup of a drop changes dramatically when polymers are added to the fluid …

Evaporation and rheology chart the processability map for centrifugal force spinning

J Merchiers, CDV Martínez Narváez, C Slykas… - …, 2021 - ACS Publications
We show that poly (ethylene oxide)(PEO) solutions formulated using solvent mixtures of
acetonitrile (AcN) and water can be centrifugally spun into fibers. We find that spinnability …

Solvent properties influence the rheology and pinching dynamics of polyelectrolyte solutions: Thickening the pot with glycerol and cellulose gum

LN Jimenez, CDV Martínez Narváez, V Sharma - Macromolecules, 2022 - ACS Publications
Charge-bearing groups that ionize in solution influence the macromolecular conformations,
interactions, and dynamics of polyelectrolytes. The rich and complex shear rheological …

[HTML][HTML] Dynamics and extensional rheology of polymer–surfactant association complexes

CDVM Narváez, T Mazur, V Sharma - Soft Matter, 2021 - pubs.rsc.org
Understanding and characterizing the influence of polymers and surfactants on rheology,
application, and processing is critical for designing complex fluid formulations for enhanced …

Dynamics of dilute polymer solutions at the final stages of capillary thinning

AV Subbotin, AN Semenov - Macromolecules, 2022 - ACS Publications
The dynamics of capillary breakup of a fluid thread of a dilute polymer solution near the Θ-
point is studied using a molecular approach. Several regimes arising during the …

Rapid viscoelastic spreading

A Bouillant, PJ Dekker, MA Hack, JH Snoeijer - Physical Review Fluids, 2022 - APS
We investigate the rapid spreading dynamics of a viscoelastic drop on a solid. Upon contact,
surface tension drives a fast motion of the contact line along the substrate. Here we resolve …

The retraction of jetted slender viscoelastic liquid filaments

U Sen, C Datt, T Segers, H Wijshoff… - Journal of fluid …, 2021 - cambridge.org
Long and slender liquid filaments are produced during inkjet printing, which can
subsequently either retract to form a single droplet, or break up to form a primary droplet and …

Coalescence of bubbles in a viscoelastic liquid

AT Oratis, V Bertin, JH Snoeijer - Physical Review Fluids, 2023 - APS
When two bubbles submerged in a liquid are brought closely together, the intermediate
liquid film separating the bubbles begins to drain. Once the film ruptures, the bubbles …