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 …

In this paper, we propose a new, fully consistent and highly stable finite element formulation
for the simulation of viscoelastic flows. In our method, we have implemented equal order …

We report some numerical simulations of multiphase viscoelastic fluids based on an
algorithm that employs a diffusive-interface lattice Boltzmann method together with a lattice …

Roll coating is distinguished by the use of one or more gaps between rotating cylinders to
meter and apply a liquid layer to a substrate. Except at low speed, the two-dimensional film …

We present an improved method to generate a sequence of structured meshes even when
the physical domain contains deforming inclusions. This method belongs to the class of …

The transient, axisymmetric squeezing of viscoplastic materials under creeping flow
conditions is examined. The flow of the material even outside the disks is followed. Both …

Many applications of viscoelastic free surface flows requiring formation of drops from small
nozzles, eg, ink-jet printing, micro-arraying, and atomization, involve predominantly …

The dynamics of the removal of a viscoplastic fluid by a Newtonian fluid is investigated
experimentally and theoretically in an inclined pipe based on our previous studies on near …

A new boundary-fitted technique to describe free surface and moving boundary problems is
presented. We have extended the 2D elliptic grid generator developed by Dimakopoulos …

The motion of two immiscible liquids in a capillary tube is analysed, theoretically and
numerically, for the case in which a residual film confines the displacing liquid to the core of …