Results 11 to 20 of about 8,060,367 (251)

Bubble dynamics in polymeric foams [PDF]

open access: yes, 2004
The effects of fluid viscoelasticity on the expansion of gas bubbles in polymer foams for both non-reactive and reactive polymers are investigated. Polymer foams are used extensively in consumer products, from car parts to upholstery.
Everitt, Sally Louise
core   +6 more sources

The fundamentals of two-phase flow in wet domestic central heating systems [PDF]

open access: yes, 2012
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.An emerging trend in the building services industry is the installation of passive deaerators on the flow line of domestic wet central heating systems.
Fsadni, Andrew M
core   +7 more sources

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

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

Yield stress fluids method to determine the pore size distribution of a porous medium [PDF]

open access: yes, 2014
In this paper a new method is presented in order to determine the pore size distribution in a porous medium. This original technique uses the rheological properties of some non-Newtonian yield stress fluids flowing through the porous sample.
AMBARI, Abdelhak   +2 more
core   +1 more source

Numerical Simulation of Poly-Dispersed Bubbly Flow Using a Multi-Fluid Model

open access: yesJournal of Fluid Science and Technology, 2007
Numerical methods for predicting poly-dispersed bubbly flows in bubble columns are indispensable in the design of bubble column reactors. The objectives of the present study are (1) to experimentally investigate the effects of a bubble size distribution ...
Munenori MAEKAWA   +3 more
doaj   +1 more source

Aqueous foams in microgravity, measuring bubble sizes

open access: yesComptes Rendus. Mécanique, 2023
The paper describes a study of wet foams in microgravity whose bubble size distribution evolves due to diffusive gas exchange. We focus on the comparison between the size of bubbles determined from images of the foam surface and the size of bubbles in ...
Pasquet, Marina   +11 more
doaj   +1 more source

Measurements of bubble size distributions with an optical technique based on depth from focus [PDF]

open access: yes, 1995
An optical sensor for bubble size measurements is presented. It is based on the combination of light blocking visualization and depth from focus techniques and allows for the measurement of single bubbles.
Jähne, Bernd, Geißler, Peter
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

Development of Bubble Size Correlation for Adiabatic Forced Convective Bubbly Flow in Low Pressure Condition Using CFD Code

open access: yesApplied Sciences, 2020
In a multidimensional two-phase flow analysis, bubble size significantly affects interfacial transfer terms such as mass, momentum, and energy. With regard to bubbly flow, the application of a simple correlation-type bubble size model presents certain ...
Jinyeong Bak   +4 more
doaj   +1 more source

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