Results 11 to 20 of about 275,515 (305)

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

Determination of Bubble Size Distribution Using Ultrasound Array Imaging [PDF]

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2020
In this article, ultrasonic phased arrays are deployed as an imaging tool for industrial process analysis. Such arrays are typically used for sonar, medical diagnosis, and nondestructive testing; however, they have not yet been applied to industrial process analysis.
Marcus Ingram   +5 more
openaire   +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. The column diameter (63–102 mm), injection tube diameter (0.8–1.6 mm) and superficial gas velocity (1.4–55 mm/s) were varied. Large samples (
Shahrouz Mohagheghian, Brian Elbing
openaire   +2 more sources

Consistency in statistical moments as a test for bubble cloud clustering [PDF]

open access: yes, 2011
Frequency dependent measurements of attenuation and/or sound speed through clouds of gas bubbles in liquids are often inverted to find the bubble size distribution and the void fraction of gas.
Bradley, David L   +2 more
core   +3 more sources

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

Bubble Measurements Downstream of Hydraulic Jumps [PDF]

open access: yes, 2001
A phase Doppler anemometer (PDA) system was used to measure the velocity profiles and air bubble size distributions downstream of two-dimensional hydraulic jumps for different upstream flow conditions in a 1.92m long laboratory flume.
Brennen, Christopher E.   +2 more
core   +1 more source

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

Competition and interaction of polydisperse bubbles in polymer foams [PDF]

open access: yes, 2006
The e®ects of interactions between bubbles of di®erent sizes during bubble growth in a polymeric foam are investigated. Two models are used: a two-dimensional sim-ulation in which both the e®ects of gas di®usion through the polymer and bubble ...
Everitt, SL, Harlen, OG, Wilson, HJ
core   +1 more source

A Review of Bubble Dynamics in Liquid Metals

open access: yesMetals, 2021
Gas bubbles are of major importance in most metallurgical processes. They promote chemical reactions, homogenize the melt, or float inclusions. Thus, their dynamics are of crucial interest for the optimization of metallurgical processes.
Tim Haas   +3 more
doaj   +1 more source

Bubble kinetics in a steady-state column of aqueous foam [PDF]

open access: yes, 2006
We measure the liquid content, the bubble speeds, and the distribution of bubble sizes, in a vertical column of aqueous foam maintained in steady-state by continuous bubbling of gas into a surfactant solution.
D. J Durian   +9 more
core   +3 more sources

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