This review focuses on direct numerical simulations (DNS) of turbulent flows laden with
droplets or bubbles. DNS of these flows are more challenging than those of flows laden with …

Fragmentation of bubbles and droplets in turbulence produces a dispersed phase spanning
a broad range of scales, encompassing everything from droplets in nanoemulsions to …

Wall-bounded turbulent flows at high Reynolds numbers have become an increasingly
active area of research in recent years. Many challenges remain in theory, scaling, physical …

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 …

This review article aims to provide a comprehensive and understandable account of the
theoretical foundation, modeling issues, and numerical implementation of the Lagrangian …

The lubrication of external liquid flow with a bubbly mixture or gas layer has been the goal of
engineers for many years, and this article presents the underlying principles and recent …

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 …

Prof. H. Ohnari (2007) developed microbubble generators to produce micrometer-size
bubbles and used them for aquacultures of oysters in Hiroshima, scallops in Hokkaido, and …

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 …