Two-phase annular flow in vertical pipes is one of the most common and important flow
regimes in fluid mechanics, particularly in the field of building drainage systems where …

Jets and plumes have been the focus of quantitative investigations since the mid‐1950s.
These investigations intensified following the Deepwater Horizon oil spill, in which …

This paper focuses on investigating the dynamic behaviour of foam flows, including flow
regimes, their transitions and pressure profiles in relation to foam characteristics (foam …

Solid particle erosion can result in major pipeline failures, economic losses and more
importantly safety and environmental issues. Erosion in multiphase flow is not widely …

The surface of a thick liquid film under strong gas shear is covered by large-scale
disturbance waves and small-scale ripples. Disruption of these ripples on top of disturbance …

Foam flows containing particles are present in many applications including mining,
wastewater treatment, environmental remediation of contaminants such as PFAS using foam …

Surfactant-based foam drainage technology is a favored method of liquid accumulation
removal, and it has been demonstrated as an efficient way to improve gas production …

Based on our earlier experimental work on the effect of surfactants on air-water flow in
vertical pipes with internal diameters of 34 mm, 50 mm, and 80 mm, we create a mechanistic …

From field experience in the gas industry, it is known that injecting surfactants at the bottom
of a gas well can prevent liquid loading. To better understand how the selection of the …

In this work, we relate the foam formation at a sparger with the dynamics of the surface
tension, represented by the surface tension reduction rate (R 1/2). In our experimental setup …