[HTML][HTML] Shear-induced ordering in liquid microjets seen by x-ray cross correlation analysis

V Markmann, M Dartsch, J Valerio, L Frenzel… - Structural …, 2020 - pubs.aip.org
We applied shear to a silica nanoparticle dispersion in a microfluidic jet device and
observed direction-dependent structure along and across the flow direction. The …

Microsecond structural rheology

F Lehmkühler, I Steinke, MA Schroer… - The journal of …, 2017 - ACS Publications
The relationship between the local structure of complex liquids and their response to shear
is generally not well understood. This concerns, in particular, the formation of particle strings …

Jetting of a shear banding fluid in rectangular ducts

PF Salipante, CAE Little, SD Hudson - Physical review fluids, 2017 - APS
Non-Newtonian fluids are susceptible to flow instabilities such as shear banding, in which
the fluid may exhibit a markedly discontinuous viscosity at a critical stress. Here we report …

Parallel and perpendicular alignment of anisotropic particles in free liquid microjets and emerging microdroplets

M Schlenk, E Hofmann, S Seibt, S Rosenfeldt… - Langmuir, 2018 - ACS Publications
Liquid microjets play a key role in fiber spinning, inkjet printing, and coating processes. In all
of these applications, the liquid jets carry dispersed particles whose spatial and orientational …

Structure of complex fluids under shear flows

J Valerio - 2018 - ediss.sub.uni-hamburg.de
With the recent developments of modern synchrotron and X-ray Free Electron Laser (XFEL)
light sources high speed and micrometer-sized liquid jets have become one of the most …

Oscillating Hydrodynamical Jets in Steady Shear of Nano‐Rod Dispersions

S Heidenreich, S Hess, SHL Klapp… - AIP Conference …, 2008 - pubs.aip.org
The dynamical behavior of molecular alignment strongly affects the flow properties of nano‐
rod dispersions such as nematic polymers. Numerical studies have been performed for the …

Analyzing flow behavior of shear-thinning fluids in a planar abrupt contraction/expansion microfluidic geometry

F Khalkhal, S Muller - Physical Review Fluids, 2022 - APS
We compare the flow behavior of several shear-thinning fluids of xanthan gum (XG) and
polyethylene oxide (PEO) with a relatively similar shear-thinning index (∼ 0.34–0.50) in a …

Three-dimensional orientation of nanofibrils in axially symmetric systems using small-angle X-ray scattering

T Rosén, C Brouzet, SV Roth, F Lundell… - The Journal of …, 2018 - ACS Publications
The increased availability and brilliance of new X-ray facilities have in the recent years
opened up the possibility to characterize the alignment of dispersed anisotropic …

Dynamics of individual Brownian rods in a microchannel flow

A Zöttl, KE Klop, AK Balin, Y Gao, JM Yeomans… - Soft Matter, 2019 - pubs.rsc.org
We study the orientational dynamics of heavy silica microrods flowing through a microfluidic
channel. Comparing experiments and Brownian dynamics simulations we identify different …

[HTML][HTML] Fluid shear thinning effects on particle focusing in a spiral microchannel

S Raut, MK Raihan, Y Song, X Xuan - Physics of Fluids, 2024 - pubs.aip.org
Particle focusing behavior in non-Newtonian flows has received increasing attention in the
past two decades because of its potential for microfluidic applications. Most previous studies …