Bubble dynamics in polymeric foams [PDF]
, 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
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The fundamentals of two-phase flow in wet domestic central heating systems [PDF]
, 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
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Characteristics of Bubbles and Gas Holdup In A Two-Phase Column For Different Liquid Phases [PDF]
Engineering 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
Effect of ultrasonic frequency and surfactant addition on microcapsule destruction
Ultrasonics 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
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Geofluids, 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
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Measurements of bubble size distributions with an optical technique based on depth from focus [PDF]
, 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
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Characterization of Bubble Size Distributions within a Bubble Column
Fluids, 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
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Air Bubble Size and Its Transition in a Horizontal Tube Produced by Venturi-Nozzle Bubble Generator [PDF]
Journal 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
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Effect of bubble size on bubble rising velocity and stagnation in a granular bed
Chemical Engineering Journal Advances, 2022 The hydrodynamics of gas and liquid flow through a granular bed were proposed in this work. By introducing optical principles, a high-speed camera was used to capture bubbles at different heights in a granular bed. The effect of bubble size on the rising
Yingchun Zhang +3 more
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Prediction of Bubble Size Distribution in a Batch Foaming System of Polystyrene-Supercritical CO2 [PDF]
علوم و تکنولوژی پلیمر, 2023 Hypothesis: One of the existing challenges in the foam production industry is to achieve the desired mechanical and thermal insulation properties required, which are directly related to cellular density, size, and distribution of bubbles.
Amir Fadaei +2 more
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