Results 11 to 20 of about 402,207 (298)

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

Research on the collapse characteristics of single cavitation bubble near solid particle by the VOF method

open access: yesHeliyon, 2023
In this paper, the collapse behavior of a single cavitation bubble at different distances near a solid particle of typical scales is numerically simulated and researched with the volume of fluid (VOF) method.
Fengxia Lyu   +4 more
doaj   +1 more source

Numerical Analysis of Effect of Initial Bubble Size on Captured Bubble Distribution in Steel Continuous Casting Using Euler-Lagrange Approach Considering Bubble Coalescence and Breakup

open access: yesMetals, 2020
A mathematic model considering the bubble coalescence and breakup using the Euler-Lagrange approach has been developed to study the effect of the initial bubble size on the distribution of bubbles captured by the solidification shell. A hard sphere model
Weidong Yang   +3 more
doaj   +1 more source

Characteristics of Bubbles and Gas Holdup In A Two-Phase Column For Different Liquid Phases [PDF]

open access: yesEngineering and Technology Journal, 2007
Experimental study of gas holdup (Eg), bubble diameter (dvs) interfacial area(a) m-1, small bubble rise velocity (Ubs), and bubble rise velocity (Ubr) in (0.1mi.d) and (1.5m) high column operated at ambient temperature and pressureconditions.
Auroba. Abdullah
doaj   +1 more source

High-speed bubble sizing. [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1992
Since a breaking wave has such a dramatic effect on the bubble population over such a brief period of time, it is necessary to acquire a bubble profile in a fraction of a second. A high-speed bubble-sizing technique has been developed that should have the capability of accurately determining bubble populations during breaking waves.
D. Koller   +3 more
openaire   +1 more source

Effect of ultrasonic frequency and surfactant addition on microcapsule destruction

open access: yesUltrasonics Sonochemistry, 2021
In a previous study, we found that cavitation bubbles cause the ultrasonic destruction of microcapsules containing oil in a shell made of melamine resin.
Ayaka Inui   +4 more
doaj   +1 more source

Applying Imaging Technique to Investigate Effects of Solute Concentrations and Gas Injection Rates on Gas Bubble Generation

open access: yesGeofluids, 2022
This work investigated the bubble size variation under various aqueous conditions, including saline and surfactant solutions, with different gas injection rates using a commercial bubble analyzer.
Guanxi Yan   +4 more
doaj   +1 more source

Factors affecting bubble size in ionic liquids [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2017
Bubble behaviour of 11 ionic liquids was studied and the relationship of bubble size, physical properties and structure was examined.
Sarah F. R. Taylor   +5 more
openaire   +8 more sources

Air Bubble Size and Its Transition in a Horizontal Tube Produced by Venturi-Nozzle Bubble Generator [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
This paper investigates the air bubble size and its transition in a horizontal tube of 700 mm. The tube was assembled with a venturi-nozzle bubble generator. Air and water flow-rates vary in the present study.
W. H. Goo   +5 more
doaj   +1 more source

Experimental evidence of flow destabilization in a 2D bidisperse foam [PDF]

open access: yes, 2006
Liquid foam flows in a Hele-Shaw cell were investigated. The plug flow obtained for a monodisperse foam is strongly perturbed in the presence of bubbles whose size is larger than the average bubble size by an order of magnitude at least.
C. Poloni   +4 more
core   +3 more sources

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