Results 21 to 30 of about 4,167,890 (151)

Flotation bubble size distribution rules with ultrasonic radiation

open access: yes矿业科学学报, 2018
By a self-made ultrasonic flotation experimental device and image processing method,flotation micro-bubble size distribution and the relationship between rising velocity and size has been investigated under different ultrasonic frequencies (28 kH、60 kHz ...
Wang Weidong, Zhang Nan
doaj   +1 more source

Improving the Performance of Surface Flow Generated by Bubble Plumes

open access: yesFluids, 2021
Gas–liquid two-phase flow is widely used in many engineering fields, and bubble dynamics is of vital importance in optimizing the engineering design and operating parameters of various adsorptive bubble systems.
Hassan Abdulmouti
doaj   +1 more source

Size Distribution and Mean Diameter of Microbubbles in Different Types of Ejector Bubble Generators [PDF]

open access: yesJournal of Applied Fluid Mechanics
This study investigates the influence of air discharge on bubble size distribution across various types of bubble generators. Air discharge rates were adjusted between 0.1 lpm and 1.0 lpm for ejector, ejector-barrier plate, and venturi bubble generators,
I. Catrawedarma   +3 more
doaj   +1 more source

Hydrodynamics and mass transfer in bubble column: Influence of liquid phase surface tension [PDF]

open access: yes, 2007
According to literature, few experiments are performed in organic solvents which are mostly used in commercial gas–liquid reactors. However, it is commonly accepted that data obtained in aqueous solution allow to predict the surface tension effects, and ...
Billet, Anne-Marie   +2 more
core   +1 more source

On the reliability of an optical fibre probe in bubble column under industrial relevant operating conditions [PDF]

open access: yes, 2007
When bubble columns are operated under industrial relevant conditions (high gas and liquid flow rates, large bubbles and vortices,. . .), local data, and especially bubble size values, are difficult to obtain.
Billet, Anne-Marie   +4 more
core   +1 more source

Estimation of Bubble Size and Gas Dispersion Property in Column Flotation

open access: yesSeparations
This study investigates bubble size measurements, bubble characteristics, and the relationship between key operating variables and gas dispersion properties in column flotation.
HyunSoo Kim, Chul-Hyun Park
doaj   +1 more source

Bubble growth in a two-dimensional viscoelastic foam [PDF]

open access: yes, 2006
The effects of viscoelasticity on the expansion of gas bubbles arranged in a hexagonal array in a polymeric fluid are investigated. The expansion is driven by the diffusion of a soluble gas from the liquid phase, and the rate of expansion is controlled ...
Harlen, OG, Wilson, HJ, Everitt, SL
core   +1 more source

Preliminary numerical study of single bubble dynamics in swirl flow using volume of fluid method

open access: yesNuclear Engineering and Technology, 2021
Spacer grid with mixing vane had been widely used in nuclear reactor core. One of the main feather of spacer grid with mixing vane was that strong swirl flow was formed after the spacer grid.
Zhongchun Li   +6 more
doaj   +1 more source

Hydrodynamics, acoustics and scaling of traveling bubble cavitation [PDF]

open access: yes, 1994
Recent observations of the geometries of growing and collapsing bubbles over axisymmetric headforms have revealed the complexity of the "microfluidmechanics" associated with these flows (Hamilton et al., 1982, Briancon Marjollet and Franc, 1990, Ceccio ...
Kuhn de Chizelle, Yan P.
core   +1 more source

Influence of liquid surface tension (surfactants) on bubble formation at rigid and flexible orifices [PDF]

open access: yes, 2004
The influence of liquid surface tension on the bubble formation from both rigid and flexible orifice has been investigated. The liquid phases under test are aqueous solutions with butanol or surfactants (cationic, non-ionic and anionic); static and ...
Hebrard, Gilles, Loubière, Karine
core   +1 more source

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