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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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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On Bubble Sizing in Water by Ultrasound
International Journal of Interactive Mobile Technologies (iJIM), 2017 <p class="Abstract">Classifying bubbles in liquids is a crucial problem that is demanded within multiple fields. This paper discusses a new method for classifying bubble sizes in non-contact and inexpensive approach using ultrasound analysis.
Walid B. Hussein +2 more
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Flotation bubble size distribution rules with ultrasonic radiation
矿业科学学报, 2018 By a self-made ultrasonic flotation experimental device and image processing method,flotation micro-bubble size distribution and the relationship between rising velocity and size has been investigated under different ultrasonic frequencies (28 kH、60 kHz ...
Wang Weidong, Zhang Nan
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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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Hydrodynamics and mass transfer in bubble column: Influence of liquid phase surface tension [PDF]
, 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
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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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On the reliability of an optical fibre probe in bubble column under industrial relevant operating conditions [PDF]
, 2007 When bubble columns are operated under industrial relevant conditions (high gas and liquid flow rates, large bubbles and vortices,. . .), local data, and especially bubble size values, are difficult to obtain.
Billet, Anne-Marie +4 more
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Improving the Performance of Surface Flow Generated by Bubble Plumes
Fluids, 2021 Gas–liquid two-phase flow is widely used in many engineering fields, and bubble dynamics is of vital importance in optimizing the engineering design and operating parameters of various adsorptive bubble systems.
Hassan Abdulmouti
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Bubble growth in a two-dimensional viscoelastic foam [PDF]
, 2006 The effects of viscoelasticity on the expansion of gas bubbles arranged in a hexagonal array in a polymeric fluid are investigated. The expansion is driven by the diffusion of a soluble gas from the liquid phase, and the rate of expansion is controlled ...
Harlen, OG, Wilson, HJ, Everitt, SL
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