The flow of polymer solutions past solid obstacles or through porous media gives rise to rich
physical phenomena over a wide range of spatial and temporal scales. Viscoelasticity, in …

We report a novel inertia-less, elastic flow instability for a viscoelastic, shear-thinning
wormlike micellar solution flowing past a microcylinder in a channel with blockage ratio BR …

Non-Newtonian fluid mechanics and computational rheology widely exploit elastic dumbbell
models such as Oldroyd-B and FENE-P for a continuum description of viscoelastic fluid …

Helical static mixers are often used during the processing of formulated products with
complex rheological properties, such as viscoelasticity. Previous experimental studies have …

Vortex instability in cavity flow is a fundamental component of microfluidic applications such
as flow mixing, nanoparticle synthesis, and cell/particle manipulation. In contrast to …

We observe regular patterns emerging across multiple length scales with high-concentration
DNA solutions in microfluidic pillar arrays at low Reynolds numbers and high Deborah …

Solutions of macromolecules exhibit viscoelastic properties and unlike Newtonian fluids,
they may break time-reversal symmetry at low Reynolds numbers resulting in elastic …

Wormlike micellar solutions possess complex rheology: when exposed to a flow field, the
wormlike micelles may orientate, stretch, and break into smaller micelles. Entangled …

We present experiments on the flow of a viscoelastic wormlike micellar solution around
cylinders (radius R) confined in straight microchannels (width W). Thirteen flow geometries …

This study investigates the interaction between an actively oscillating cylinder and a passive
cylinder elastically mounted with a damper. Both cylinders are rigid, immersed in a viscous …