We investigate the rheological characteristics of human blood plasma in shear and
elongational flows. While we can confirm a Newtonian behavior in shear flow within …

Blood plasma has been considered a Newtonian fluid for decades. Recent experiments
(Brust et al., Phys. Rev. Lett., 2013, 110) revealed that blood plasma has a pronounced …

We report the emergence of large zigzag bands in a population of reversibly actuated
magnetic rotors that behave as active shakers, namely squirmers that shake the fluid around …

We all instinctively poke, bounce, scoop, and observe materials to understand rheological
properties quickly. Yet, these observations are rarely analyzed quantitatively. To address …

Newtonian pipe flow is known to be linearly stable at all Reynolds numbers. We report, for
the first time, a linear instability of pressure-driven pipe flow of a viscoelastic fluid, obeying …

The capillary break-up of a polymer solution evolves via a series of stages. After the initial
instability a long-lived cylindrical filament is formed, which thins exponentially in time, while …

A combined experimental, numerical and theoretical investigation of the geometric scaling of
the onset of a purely elastic flow instability in serpentine channels is presented. Good …

Protorheology is the paradigm that any observed flow or deformation is a chance to infer
quantitative rheological properties. While this creates many opportunities for insight, there is …

In this study, we experimentally investigate the turbulent drag-reduction (DR) mechanism in
flow through ducts of circular, rectangular and square cross-sections using two grades of …

Many artificial and natural fluids contain macromolecules, particles or droplets that impart
complex flow behavior to the fluid. This complex behavior results in a non-linear relationship …