A viscous solvent laminar flow may be strongly modified by the addition of a tiny amount of
long polymer molecules, resulting in a chaotic flow called elastic turbulence (ET). ET is …

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 …

We present a new dimensionless criterion that can be used to characterize and unify the
critical conditions required for onset of purely elastic instabilities in a wide range of different …

The progress made during the past decade in the application of mixed finite element
methods to solve viscoelastic flow problems using differential constitutive equations is …

The Oldroyd-B fluid has become the starting point for almost all complex flow calculations
and analysis involving the behavior of dilute polymer solutions. The reasons for this are …

The evolution of the transient extensional stresses in dilute and semi-dilute viscoelastic
polymer solutions was measured with a filament stretching rheometer of a design similar to …

Electroosmotic flow (EOF) has been widely used in various biochemical microfluidic
applications, many of which use viscoelastic non-Newtonian fluid. This study numerically …

The first direct comparisons of finite element simulations and detailed point-wise
experimental velocity measurements are presented for the international benchmark problem …

We study the shear-thinning mediation of elasto-inertial transitions in Taylor–Couette flow of
viscoelastic polymer solutions. Two types of high molecular weight polymers are used at …

Experimental observations and linear stability analysis are used to quantitatively describe a
purely elastic flow instability in the inertialess motion of a viscoelastic fluid confined between …