At the beginning of the last century Worthington and Cole discovered that the high-speed
jets ejected after the impact of an axisymmetric solid on a liquid surface are intimately …

Passive acoustic bubble sizing was investigated in both controlled tests and in a stirred,
sparged tank typical of the biotechnology or minerals processing industries. Acoustic …

Three methods for measuring the volume and the equivalent radius of air bubbles at
detachment from the tip of different capillary tubes in quiescent water were tested. The aim …

A discrete phase simulation (DPS) is conducted to investigate multi-bubble formation
dynamics in gas–liquid–solid fluidization systems. A numerical technique based on …

Wind-generated waves are the most prominent feature of the ocean surface, and so are
breaking waves manifested by the appearance of sporadic whitecaps. Such breaking …

A passive acoustic method of detecting breaking waves of different scales has been
developed. The method also showed promise for measuring breaking severity. Sounds were …

Observations of seabed bubbles (⁠ 62 m depth) at a natural marine hydrocarbon seep by
passive acoustic and optical approaches are compared. The acoustic and optical methods …

Circular plunging jets were studied by both void fraction and acoustic techniques. There
were two aims: to measure the structure of the jet flow and its regimes as a function of jet …

A system in which bubbles coalesced on formation was used to probe one mechanism by
which bubbles create sound. The aim was to determine in which situations sound is …

The coalescence of bubbles has great value in mineral recovery and oil industry. In this
paper, two co-axial bubbles rising in a cylinder is modelled to study the coalescence of …