Results 11 to 20 of about 104,071 (312)

Lorenz Curves, Size Classification, and Dimensions of Bubble Size Distributions [PDF]

open access: yesEntropy, 2009
Lorenz curves of bubble size distributions and their Gini coefficients characterize demixing processes. Through a systematic size classification, bubble size histograms are generated and investigated concerning their statistical entropy.
Sonja Sauerbrei
doaj   +4 more sources

In situ measurements of void fractions and bubble size distributions in bubble curtains. [PDF]

open access: yesExp Fluids, 2023
AbstractWe report the development of a novel measurement system designed to measure bubble properties in bubble curtains (i.e. planar bubble plumes) in situ alongside acoustical measurements. Our approach is based on electrical, contact-based needle sensors in combination with an optical system.
Beelen S   +4 more
europepmc   +5 more sources

Characterization of Bubble Size Distributions within a Bubble Column [PDF]

open access: yesFluids, 2018
The current study experimentally examines bubble size distribution (BSD) within a bubble column and the associated characteristic length scales. Air was injected into a column of water via a single injection tube.
Shahrouz Mohagheghian, Brian R. Elbing
doaj   +2 more sources

Control of bubble size and bubble number in bubble electrospinning

open access: yesComputers & Mathematics with Applications, 2012
AbstractThe surface tension of a bubble depends upon its size; a smaller bubble requires a smaller electronic force for fabrication of ultrafine fibers using bubble electrospinning. The electronic field triggers rupture of interacted bubbles to form daughter bubble cascades, so a very low voltage is needed for nanofiber fabrication.
Ji-Huan He, Yong Liu
openaire   +2 more sources

Effect of particle shape on bubble dynamics in bubbling fluidized bed [PDF]

open access: yesEPJ Web of Conferences, 2021
Particle shape can significantly affect the bubble dynamics of bubbling fluidized beds (BFB). In this paper, findings obtained from simulations using CFD-DEM are summarized to discuss the effect of particle shape on bubble dynamics and bubble properties ...
Shrestha Siddhartha, Zhou Zongyan
doaj   +1 more source

Effect of Operating Parameters on the Coalescence and Breakup of Bubbles in a Multiphase Pump Based on a CFD-PBM Coupled Model

open access: yesJournal of Marine Science and Engineering, 2022
When the multiphase pump is running, the internal medium often exists as bubble flow. In order to investigate the bubble occurrence characteristics in the pressurization unit of the multiphase pump more accurately, this paper couples computational fluid ...
Sijia Tao   +4 more
doaj   +1 more source

Frother Characterization Using a Novel Bubble Size Measurement Technique

open access: yesApplied Sciences, 2022
Bubble size measurement is a vital part of flotation system analysis and diagnostics. This work evaluates a commercial camera probe as a novel method for in situ bubble size measurement.
Junyu Wang   +2 more
doaj   +1 more source

Stability of big surface bubbles: impact of evaporation and bubble size [PDF]

open access: yesSoft Matter, 2020
Statistical data show that lifetime of surface bubbles increases with size and humidity. Models are derived and verified to describe the thinning of the film as well as its lifetime under the action of gravity/capillarity and convective evaporation.
Miguet, Jonas   +4 more
openaire   +4 more sources

Gas Bubble Dynamics During Methane Hydrate Formation and its Influence on Geophysical Properties of Sediment Using High-Resolution Synchrotron Imaging and Rock Physics Modeling

open access: yesFrontiers in Earth Science, 2022
Gas bubble in aquatic sediments has a significant effect on its geophysical and geomechanical properties. Recent studies have shown that methane gas and hydrate can coexist in gas hydrate–bearing sediments.
B. N. Madhusudhan   +6 more
doaj   +1 more source

Numerical investigation of two-microbubble collapse and cell deformation in an ultrasonic field

open access: yesUltrasonics Sonochemistry, 2023
Two-microbubble collapse near a spherical cell in an ultrasonic field is numerically analyzed by extending a level-set method for compressible multiphase flows with bubble and cell multiple interfaces.
Seongjin Hong, Gihun Son
doaj   +1 more source

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