Study of bubble dynamics in gas-solid fluidized beds using ultrashort echo time (UTE) magnetic resonance imaging (MRI)

Simple item page
dc.contributor.authorFabich HT
dc.contributor.authorSederman AJ
dc.contributor.authorHolland DJ
dc.date.accessioned2017-10-15T23:43:42Z
dc.date.available2017-10-15T23:43:42Z
dc.date.issued2017en
dc.date.updated2017-07-04T04:41:05Z
dc.description.abstractA narrow column, gas-solid fluidized bed was studied using ultrashort echo time (UTE) magnetic resonance imaging (MRI) for particles of diameter 0.44 mm, 0.72 mm, and 1.5 mm. UTE enables 1D and 2D images to be acquired of an individual bubble as it rises through the sample with higher spatial resolution than has previously been possible with MRI. One-dimensional images allow calculations of bubble rise velocity and bubble frequency. They also show leading-trailing bubble coalescence. Images of bubbles in the axial plane were obtained in 2D, with the location of images adjusted to track bubbles as they rise. These measurements were used to observe the wake region of a bubble, lateral drift as the bubble rises, and in-plane bubble coalescence. Images in the vertical plane were used to study the stability of a 1D perturbation in voidage. The perturbation collapsed rapidly with particles < 1 mm in diameter, but for the 1.5 mm diameter particles the perturbation was often stable throughout the imaging region.en
dc.identifier.citationFabich HT, Sederman AJ, Holland DJ (2017). Study of bubble dynamics in gas-solid fluidized beds using ultrashort echo time (UTE) magnetic resonance imaging (MRI). Chemical Engineering Science.en
dc.identifier.doihttps://doi.org/10.1016/j.ces.2017.07.003
dc.identifier.issn0009-2509
dc.identifier.urihttp://hdl.handle.net/10092/14531
dc.language.isoen
dc.rightsCreative Commons Attribution Non-Commercial No Derivatives Licenseen
dc.subject.anzsrcFields of Research::40 - Engineering::4012 - Fluid mechanics and thermal engineering::401212 - Non-Newtonian fluid flows (incl. rheology)en
dc.titleStudy of bubble dynamics in gas-solid fluidized beds using ultrashort echo time (UTE) magnetic resonance imaging (MRI)en
dc.typeJournal Articleen
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Fabich_ChemEngSci_corrections_clean.pdf
Size:
1.01 MB
Format:
Adobe Portable Document Format
Download
Collections
Engineering: Journal Articles