Journal ArticleDOI
Bubble Formation and Bubble Rise Velocity in Gas−Liquid Systems: A Review
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Abstract:
The formation of gas bubbles and their subsequent rise due to buoyancy are very important fundamental phenomena that contribute significantly to the hydrodynamics in gas−liquid reactors. The rise o...read more
Citations
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Micro and nanobubble technologies as a new horizon for water-treatment techniques: A review
TL;DR: The article is prepared in such a way that it provides a step-by-step acquaintance to the subject matter with the objective of focusing on the application of microbubbles and nanobubbles in water-treatment technology.
Journal ArticleDOI
Bubble formation and dynamics in gas–liquid–solid fluidization—A review
G.Q. Yang,Bing Du,Liang-Shih Fan +2 more
TL;DR: In this paper, the authors summarize the salient characteristics of liquid, bubbles, and particles and their interactive behavior and dynamics in the process of bubble formation and bubble rising in gas-liquid-solid fluidization systems.
Journal ArticleDOI
The science of foaming.
TL;DR: The subject is reviewed by providing an overview of the relevant key mechanisms of bubble generation within a coherent hydrodynamic context; and different foaming techniques which exploit these mechanisms are discussed.
Journal ArticleDOI
Effect of interfacial forces and turbulence models on predicting flow pattern inside the bubble column
TL;DR: In this paper, the effect of various interfacial forces and turbulence models on gas-liquid velocity and gas hold-up in bubble column is critically reviewed, and the authors make an effort to show suitable interfacial force i.e., drag force, lift force, turbulent dispersion models and virtual mass and turbulence model such as standard k-ɛ model, Reynolds stress model, Large Eddy Simulation to predict flow pattern inside the bubble column using Eulerian-Eulerian.
Journal ArticleDOI
Two-phase flow in membrane processes: A technology with a future
TL;DR: A comprehensive and critical literature review of the state of the art in this research area is provided in this paper, where the authors identify key factors in the application of two-phase flows in aqueous separation and purification processes.
References
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Journal ArticleDOI
Particle-Imaging Techniques for Experimental Fluid Mechanics
TL;DR: A review of these methods can be found in articles by Lauterborn & Vogel (1984), Adrian (1986a), Hesselink (1988), and Dudderar et al..
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Bubbles in viscous liquids: shapes, wakes and velocities
D. Bhaga,Martin E. Weber +1 more
TL;DR: In this article, the shape and terminal velocities of bubbles rising in viscous liquids have been determined for Morton numbers (M) greater than 4 × 10−3 and R 110.
Journal ArticleDOI
The Motion of High-Reynolds-Number Bubbles in Inhomogeneous Flows
Jacques Magnaudet,Ian Eames +1 more
TL;DR: In this article, a trident approach consisting of experimental, analytical, and numerical work has given a clearer description of the hydrodynamic forces experienced by isolated bubbles moving either in inviscid flows or in slightly viscous laminar flows, and a significant part of the paper is devoted to a discussion of drag, added mass force, and shear-induced lift experienced by spheroidal bubbles moving in inertially dominated, time-dependent, rotational, nonuniform flows.
Journal ArticleDOI
Drag Coefficients of Single Bubbles under Normal and Micro Gravity Conditions
TL;DR: In this article, a simple but reliable correlation for a drag coefficient, CD, of single bubbles under a wide range of fluid properties, bubble diameter and acceleration of gravity were developed based on a balance of forces acting on a bubble in a stagnant liquid and available empirical correlations of terminal rising velocities of single bubble.
Journal ArticleDOI
The lift force on a spherical body in a rotational flow
TL;DR: In this article, a sphere is placed in a weak shear flow of an inviscid fluid and the secondary velocity resulting from advection of vorticity by the irrotational component of the flow is computed on the sphere surface, and on the upstream axis.