The archetypal feature of a viscoplastic fluid is its yield stress: If the material is not sufficiently
stressed, it behaves like a solid, but once the yield stress is exceeded, the material flows like …

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 …

Flows of materials with yield are analysed by using a continuous viscoplastic equation
(CVE) that eliminates the necessity of tracking material yield surfaces. These flows are …

Recent years have seen a flurry of research on yield stress fluids, approached from different
perspectives (physicochemical, rheological and fluid mechanical), considering different …

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 …

We examine the buoyancy-driven rise of a bubble in a Newtonian or a viscoplastic fluid
assuming axial symmetry and steady flow. Bubble pressure and rise velocity are …

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 …

Recent experiments on the evaporation of sessile droplets have revealed the spontaneous
formation of various patterns including the presence of hydrothermal waves. These waves …

Recent adhesive research starts to consider more process oriented problems, in addition to
the classical static stress and strength related topics, thus shifting towards a more global …

The flow inside a fluid damper where a piston reciprocates sinusoidally inside an outer
casing containing high-viscosity silicone oil is simulated using a finite volume method, at …