Coalescence and break-up in dense bubbly flows

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A combined experimental and computational study has been performed on the effect of coalescence and breakup in bubbly flows. A pseudo-2D bubble column with a special needle sparger has been constructed to obtain well-defined inlet conditions at the gas distributor. An advanced digital image analysis technique has been developed to determine the Bubble Size Distribution (BSD) as a function of position and superficial gas velocity. Most experimental studies of the size distribution have thus far concentrated on bubbly flow at relatively low void fractions. In the present study the column is operated in the regime of dense bubbly flow, where the individual bubble or a cluster of bubbles can be characterized, leading to the construction of the size distribution.
Original languageEnglish
Title of host publicationProceedings of the 22nd International Symposium on Chemical Reaction and Engineering (ISCRE 2012), 2-5 September 2012, Maastricht, The Netherlands
Publication statusPublished - 2012
Event22nd International Symposium on Chemical Reaction Engineering (ISCRE 22) - Maastricht, Netherlands
Duration: 2 Sep 20125 Sep 2012


Conference22nd International Symposium on Chemical Reaction Engineering (ISCRE 22)
Abbreviated titleISCRE 22


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