The understanding of hydrodynamic forces around particles, drops, or bubbles moving in
Newtonian liquids is modestly mature. It is possible to obtain predictions of the attractive …

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 …

Some authors, in the last decades, have observed the dual effect of viscosity on gas holdup
and flow regime transition in small-diameter and small-scale bubble columns. This work …

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 …

To describe the macroscopic rheological behavior of thixotropic elasto-visco-plastic (TEVP)
materials, phenomena that take place in their microstructure must be accounted for. To this …

Foam concrete (FC) is suitable to be used as printing ink for drones in extreme environment
because of its light weight, it can reduce the load of drones and improve printing efficiency …

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 …

The development of stable numerical schemes for viscoelastic multiphase flows has
implications for many areas of engineering applications. The principal original contribution …

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 …