Bubbly flows involve bubbles randomly distributed within a liquid. At large Reynolds
number, they experience an agitation that can combine shear-induced turbulence (SIT) …

Direct numerical simulations of bubbly multiphase flows are used to find closure terms for a
simple model of the average flow, using Neural Networks (NNs). The flow considered …

As bubbles rising in a vertical channel with upflow become bigger, it is well known that the
void fraction distribution changes in a fundamental way, from a wall peak for small bubbles …

The rheology of dense red blood cell suspensions is investigated via computer simulations
based on the lattice Boltzmann, the immersed boundary, and the finite element methods …

A constant-density approach, which corrects intermediate density errors by adjusting the half-
time-step velocity with exact projection, is proposed for the multi-phase SPH method …

Three-dimensional particle tracking velocimetry (PTV) and phase-sensitive constant
temperature anemometry in pseudo-turbulence–ie flow solely driven by rising bubbles–were …

In direct numerical simulations of multiphase flows, based on the Volume of Fluid (VOF)
approach, the advection of the volume fraction field is a crucial point. The choice of the …

The dynamics of bubbles in upflow, in a vertical channel, is examined using direct numerical
simulations (DNS), where both the flow and the bubbles are fully resolved. Two cases are …

This paper presents a numerical study of buoyancy-driven motion of single and multiple
bubbles by means of the conservative level-set method. First, an extensive study of the …

The objective of this study is to understand the dynamics of freely evolving particle
suspensions over a wide range of particle-to-fluid density ratios. The dynamics of particle …