Hypothesis Under specific conditions, rod-like cellulose nanocrystals (CNC) can assemble
into structurally ordered soft glasses (SGs) with anisotropy that can be controlled by applying …

Based on the original ideas by Oldroyd in 1947, Saramito in 2007 introduced a generally
acceptable model for yield stress fluids that also accounts for their elasticity. We use this …

We present a comprehensive investigation combining numerical simulations with
experimental validation, focusing on the creeping flow behavior of a shear-banding …

We consider the buoyancy-driven rise and interaction between two coaxially placed bubbles
of equal size and constant volume that are initially stationary inside an elastoviscoplastic …

The appearance of surface distortions on polymer melt extrudates, often referred to as
sharkskin instability, is a long-standing problem. We report results of a simple physical …

Numerical optimization of a “six-arm cross-slot” device yields several three-dimensional
shapes of fluidic channels that impose close approximations to an ideal uniaxial (biaxial) …

The famous White–Metzner (WM) constitutive equation expresses a relatively simple
nonlinear viscoelastic fluid of polymer melts. However, such a differential stress model …

We present a comprehensive analytical and numerical study of shear-dominated flows of
Oldroyd-B fluids. Starting from transient ideal Couette flow, we show that less work is …

The generation of a wide region of shear-free, strong extensional flow near a stagnation
point has been proven to be a great challenge, especially when considering yield-stress …

We study theoretically the stretching dynamics of a yield stress material that exhibits both
elastic and viscoplastic behavior. The material is confined between two coaxial disks …