▪ Abstract Predicting the motion of bubbles in dispersed flows is a key problem in fluid
mechanics that has a bearing on a wide range of applications from oceanography to …

▪ Abstract The current understanding of the average flow properties of packed beds and
particle suspensions, in which inertia plays a significant role on the particle length scale, is …

Because of the importance of multiphase flows in a wide variety of industries, including
power, petroleum, and numerous processing industries, an understanding of the behavior …

The field of multiphase flows has grown by leaps and bounds in the last thirty years and is
now regarded as a major discipline. Engineering applications, products and processes with …

We study experimentally the motion of a solid sphere settling under gravity in a fluid at rest.
The particle velocity is measured with a new acoustic method. Variations of the sphere size …

Recent developments concerning the unsteady dynamic forces on a spherical particle at
finite Reynolds number are reviewed for solid particles and clean micro-bubble. A particle …

Turbulent boundary layer skin friction in liquid flows may be reduced when bubbles are
present near the surface on which the boundary layer forms. Prior experimental studies of …

Recent advances on the analytical form of the hydrodynamic force and heat/mass transfer
from a particle, bubble, or drop are examined critically. Also some of the recent …

The existing model equations governing the accelerated motion of a spherical particle are
examined and their predictions compared with the results of the numerical solution of the full …

The interaction between a fixed particle and decaying homogeneous isotropic turbulence is
studied numerically using an overset grid that provides resolution of all scales of fluid …