Two-phase bubble columns: A comprehensive review

G Besagni, F Inzoli, T Ziegenhein - ChemEngineering, 2018 - mdpi.com
We present a comprehensive literature review on the two-phase bubble column; in this
review we deeply analyze the flow regimes, the flow regime transitions, the local and global …

Towards energy efficient nanobubble generation with fluidic oscillation

WB Zimmerman, V Tesař, HCH Bandulasena - Current Opinion in Colloid & …, 2011 - Elsevier
Nanobubbles are a mystery as to their stability and longevity. So far their uses are limited to
high value applications, such as medical imaging and controlled drug delivery and release …

Experimental studies on the shape and motion of air bubbles in viscous liquids

L Liu, H Yan, G Zhao - Experimental Thermal and Fluid Science, 2015 - Elsevier
This paper is concerned with single bubble dynamics over a wide experimental data set in
stagnant water and glycerol aqueous solution. The bubble trajectory in three-dimensional …

The dual effect of viscosity on bubble column hydrodynamics

G Besagni, F Inzoli, G De Guido… - Chemical Engineering …, 2017 - Elsevier
Some authors, in the last decades, have observed the dual effect of viscosity on gas holdup
and flow regime transition in small-diameter and small-scale bubble columns. This work …

Bubble size distributions and shapes in annular gap bubble column

G Besagni, F Inzoli - Experimental Thermal and Fluid Science, 2016 - Elsevier
An understanding of the bubble properties, size distributions and shapes is of fundamental
importance for comprehending flow dynamics and mass transfer phenomena in bubble …

Multiphase turbulence in bubbly flows: RANS simulations

M Colombo, M Fairweather - International Journal of Multiphase Flow, 2015 - Elsevier
The ability of a two-fluid Eulerian–Eulerian computational multiphase fluid dynamic model to
predict bubbly air–water flows is studied. Upward and downward pipe flows are considered …

Estimation of bubble size distributions and shapes in two-phase bubble column using image analysis and optical probes

G Besagni, P Brazzale, A Fiocca, F Inzoli - Flow Measurement and …, 2016 - Elsevier
A precise estimation of bubble size distributions and shapes is required to characterize the
bubble column fluid dynamics at the “bubble-scale”, and to evaluate the heat and mass …

Experimental studies on the terminal velocity of air bubbles in water and glycerol aqueous solution

L Liu, H Yan, G Zhao, J Zhuang - Experimental Thermal and Fluid Science, 2016 - Elsevier
Terminal rising velocity of a single bubble in stagnant water and glycerol aqueous solution
was studied by the techniques of high-speed photography and digital image analysis. The …

Drag coefficient fluctuation prediction of a single bubble rising in water

X Yan, Y Jia, L Wang, Y Cao - Chemical Engineering Journal, 2017 - Elsevier
The drag coefficient has a significant effect on the calculation of bubble motion. This paper
experimentally investigated the drag coefficient of a single bubble rising in deionized water …

Multi-fluid simulation of turbulent bubbly pipe flows

S Hosokawa, A Tomiyama - Chemical Engineering Science, 2009 - Elsevier
Radial distributions of void fraction αG, bubble aspect ratio E, phasic velocities VG and VL
and turbulent kinetic energy k in bubbly pipe flows are measured using an image processing …