Results 261 to 270 of about 275,515 (305)
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Acoustics of bubbly sediments with a distribution of bubble sizes.
The Journal of the Acoustical Society of America, 1991A model for a saturated, porous elastic medium containing bubbles of gas [J. Acoust. Soc. Am. 73, 409–417 (1983)] has been combined with a model for a bubbly liquid with a bubble population whose radii vary continuously over a known distribution [J. Acoust. Soc. Am. Suppl. 1 88, (1990)] to obtain an acoustical model for saturated sediments containing a
J. A. Hawkins, A. Bedford
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Chemical Engineering Science, 1998
Abstract The probability relationships between bubble sizes and chord lengths in an heterogeneously bubbling system have been analyzed. A forward transform of chord length distribution for a given bubble size density distribution affecting the probe under a heterogeneously bubbling condition has been demonstrated. Three backward transform techniques,
Weidong Liu +2 more
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Abstract The probability relationships between bubble sizes and chord lengths in an heterogeneously bubbling system have been analyzed. A forward transform of chord length distribution for a given bubble size density distribution affecting the probe under a heterogeneously bubbling condition has been demonstrated. Three backward transform techniques,
Weidong Liu +2 more
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Bubble size distribution in a flotation column
The Canadian Journal of Chemical Engineering, 1994AbstractThe bubbles that were generated in a flotation column were measured. The bubble size distributions were obtained both for air‐water and air‐water‐coal systems. The size distribution pattern was fitted to different equations. It was found that the bubble size distribution in both the flotation and cleaning zones follows the Rosin‐Rommler ...
S. K. Biswal +2 more
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A theoretical model concerning bubble size distributions
The Chemical Engineering Journal, 1986Abstract The purpose of this paper is to provide a theoretical model of the bubble size distribution in bubble beds and to explain why bubble populations with more than one maximum can be found. The presence of these maxima corresponds to the effect of segregation of bubbles with respect to their volume. The bubbles' coalescence and breakup mechanism
R. Mihail, S. Straja
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Local bubble size distributions in agitated vessels
Chemical Engineering Journal, 2005Abstract Local bubble size distributions (BSD) were measured from 12, 14 and 194 dm3 agitated vessels with capillary suction probe (CSP) technique. The four investigated systems were air–water, air–aqueous NaCl, air–aqueous starch and CO2–n-butanol. Several gassing rates and stirring speeds were investigated to find their effect on local BSDs.
Marko Laakkonen +2 more
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Local bubble‐size distribution in fluidized beds
AIChE Journal, 2000AbstractThe importance of the rise angle of bubbles on the influence of local bubble‐size distribution in fluidized beds was studied. A new method is proposed for transforming chord‐length distribution to a local bubble‐size distribution, including the effect of the velocity vector direction on the transformation.
D. Santana, A. Macías‐Machín
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Bubble size distribution measurement by Doppler velocimeter
Journal of Applied Physics, 1975The size distribution of gas bubbles in water was measured by the measurement of their velocity distribution with a Doppler velocimeter. Sizes from r=15 μm and above were recorded and all the distributions (due to different bubble generators) showed a good fit to the log−normal distribution.
N. Ben−Yosef +3 more
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Measurement of bubble size distribution in fermentors
Biotechnology Letters, 1979The “photoelectric probe method” for measuring bubble size distributions was adapted for application in turbid liquids. It can now be used for investigations of the influence of hydrodynamics and liquid phase properties on bubble formation, dispersion, and coalescence in submersed fermentation systems.
L. Brentrup, U. Onken
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Mathematical modeling of bubble size distribution in bubble column
Materials Today: Proceedings, 2023Subhajit Patra +2 more
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Bubble size distributions in mountain streams
Mountain streams are hot spots for the exchange of gases such as oxygen or carbon dioxide with the atmosphere. Air-water gas exchange is accelerated by air bubbles entrained in turbulent flow and depends on bubble concentration and size. Yet, our understanding of gas exchange mechanisms and our ability to upscale gas fluxes is hampered by a severe lackMarcus Klaus +4 more
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