Viscoplasticity is characterized by a yield stress, below which the materials will not deform
and above which they will deform and flow according to different constitutive relations …

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 …

The sedimentation of a single particle in materials that exhibit simultaneously elastic,
viscous and plastic behavior is examined in an effort to explain phenomena that contradict …

Finite volume methods (FVMs) constitute a popular class of methods for the numerical
simulation of fluid flows. Among the various components of these methods, the discretisation …

The steady, buoyancy-driven rise of a bubble in a Herschel–Bulkley fluid is examined
assuming axial symmetry. The variation of the rate-of-strain tensor around a rising bubble …

We examine and compare five constitutive models, which have been recently proposed to
describe the behavior of elasto-visco-plastic fluids. The comparison is performed in simple …

We examine the abrupt increase in the rise velocity of an isolated bubble in a viscoelastic
fluid occurring at a critical value of its volume, under creeping flow conditions. This 'velocity …

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 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 recently proposed finite element (FE) formulation for viscoelastic flows that allows the
use of equal order linear interpolants for all variables and simultaneously does not suffer …