Fluid turbulence is commonly associated with stronger drag, greater heat transfer, and more
efficient mixing than in laminar flows. In many natural and industrial settings, turbulent liquid …

The injection of gas bubbles into a turbulent boundary layer of a liquid phase has multiple
different impacts on the original flow structure. Frictional drag reduction is a phenomenon …

Direct numerical simulations are used to examine laminar bubbly flows in vertical channels.
For equal size nearly spherical bubbles the results show that at steady state the number …

A new model is developed to describe the coalescence and breakup between bubbles and
inclusions. In this model, the density of bubble attached inclusions is calculated through …

The bubble dynamics are of great significance in the scientific community and have wide
applications. Due to the complex coupling effect, high nonlinearities arise when the bubble …

In the case of increasingly serious river pollution worldwide, aeration in channels is an
effective way to solve water pollution. However, traditional aeration research is aimed mainly …

Finite-sized polydispersed objects, such as bubbles or droplets, are difficult to track in 3D
using optical methods because of their overlapping images when the image density is large …

Frictional drag reduction, a technique by which bubbles are injected into the turbulent
boundary layer surrounding the hull of a marine vessel, is now at the stage of practical …

This paper presents experimental findings on the behavior of bubbles moving along upper
flat plates with different surface wettability in a horizontal channel. The size and velocity of …

The injection of bubbles into a turbulent boundary layer can reduce the skin friction of a wall.
Conventionally, the drag reduction rate is evaluated using time-averaged quantities of the …