We present a comprehensive literature review on the two-phase bubble column; in this
review we deeply analyze the flow regimes, the flow regime transitions, the local and global …

The numerical approaches have been used in many studies to predict the flow pattern inside
the bubble column reactors because of the difficulties that are still found in designing and …

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 …

In this paper, we apply a variety of experimental techniques to investigate the influence of
the counter-current mode on bubble column hydrodynamics. We study an air–water bubble …

The correct design, operation and scale-up of bubble columns rely on the knowledge of the
fluid dynamics at the “bubble-scale” and at the “reactor-scale”. This paper contributes to the …

In the present work, a data-driven model for identification of flow regime in a bubble column
is developed by combining data from optical probe technique and machine learning. Optical …

Closure laws are needed for the qualification of CFD codes for two-phase flows. In case of
bubbly and slug flow, forces acting on the bubbles usually model the momentum transfer …

A precise estimation of bubble size distributions and shapes is required to characterize the
bubble column fluid dynamics at the “bubble-scale”, and to evaluate the heat and mass …

The bubble shape is fundamental for every aspect of modeling bubbly flows. The interface is
usually highly deformable so that the bubble shape is in general dependent on the …

An extensive experimental database comprising air–water as well as steam-water upwards
vertical pipe flows for a pressure up to 6.5 MPa was used to investigate the effect of the …