Pore‐scale flow characterization of polymer solutions in microfluidic porous media

CA Browne, A Shih, SS Datta - Small, 2020 - Wiley Online Library
Polymer solutions are frequently used in enhanced oil recovery and groundwater
remediation to improve the recovery of trapped nonaqueous fluids. However, applications …

Understanding viscoelastic flow instabilities: Oldroyd-B and beyond

HAC Sánchez, MR Jovanović, S Kumar… - Journal of Non …, 2022 - Elsevier
The Oldroyd-B model has been used extensively to predict a host of instabilities in shearing
flows of viscoelastic fluids, often realized experimentally using polymer solutions. The …

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 …

Effects of shearing and extensional flows on the alignment of colloidal rods

V Calabrese, SJ Haward, AQ Shen - Macromolecules, 2021 - ACS Publications
Cellulose nanocrystals (CNC) can be considered as model colloidal rods and have practical
applications in the formation of soft materials with tailored anisotropy. Here, two contrasting …

Elastic turbulence generates anomalous flow resistance in porous media

CA Browne, SS Datta - Science advances, 2021 - science.org
Many energy, environmental, industrial, and microfluidic processes rely on the flow of
polymer solutions through porous media. Unexpectedly, the macroscopic flow resistance …

[PDF][PDF] Transport of complex and active fluids in porous media

M Kumar, JS Guasto, AM Ardekani - Journal of Rheology, 2022 - pubs.aip.org
Complex and active fluids find broad applications in flows through porous materials.
Nontrivial rheology can couple to porous microstructure leading to surprising flow patterns …

Stagnation points control chaotic fluctuations in viscoelastic porous media flow

SJ Haward, CC Hopkins… - Proceedings of the …, 2021 - National Acad Sciences
Viscoelastic flows through porous media become unstable and chaotic beyond critical flow
conditions, impacting widespread industrial and biological processes such as enhanced oil …

Understanding inks for porous-electrode formation

KB Hatzell, MB Dixit, SA Berlinger… - Journal of Materials …, 2017 - pubs.rsc.org
Scalable manufacturing of high-aspect-ratio multi-material electrodes are important for
advanced energy storage and conversion systems. Such technologies often rely on solution …

[HTML][HTML] Inelastic and flow-type parameter models for non-Newtonian fluids

RJ Poole - Journal of Non-Newtonian Fluid Mechanics, 2023 - Elsevier
Abstract Generalised Newtonian Fluid (GNF) models which assume that the viscosity of a
non-Newtonian fluid can be modelled inelastically as a time-independent, ie instantaneous …

Pinch‐off dynamics and extensional relaxation times of intrinsically semi‐dilute polymer solutions characterized by drip**‐onto‐substrate rheometry

J Dinic, M Biagioli, V Sharma - Journal of Polymer Science Part …, 2017 - Wiley Online Library
Stream‐wise velocity‐gradients associated with extensional flows arise in thinning liquid
necks spontaneously formed during jetting, printing, coating, spraying, atomization, and …