2013
DOI: 10.1016/j.ces.2013.01.004
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Characterization of turbulence in rectangular bubble column

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Cited by 35 publications
(24 citation statements)
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“…Particle seeding allows the determination of velocities for the liquid phase, and, in dispersed bubbly flows, the velocity and distribution of the gaseous phase is determined via identification and tracking of single bubbles. In planar PIV, dispersed bubbles can be isolated from seeding particles using a size-based filter [24,25], or a separate imaging system operating at a different wavelength can be used to capture shadow images of the bubbles [26,27]. Also, threedimensional liquid velocities measurement along with ellipsoidal bubble reconstruction has been achieved with a stereoscopic PIV set up to study single bubble dynamics [28].…”
Section: Introductionmentioning
confidence: 99%
“…Particle seeding allows the determination of velocities for the liquid phase, and, in dispersed bubbly flows, the velocity and distribution of the gaseous phase is determined via identification and tracking of single bubbles. In planar PIV, dispersed bubbles can be isolated from seeding particles using a size-based filter [24,25], or a separate imaging system operating at a different wavelength can be used to capture shadow images of the bubbles [26,27]. Also, threedimensional liquid velocities measurement along with ellipsoidal bubble reconstruction has been achieved with a stereoscopic PIV set up to study single bubble dynamics [28].…”
Section: Introductionmentioning
confidence: 99%
“…In studies of bubble swarms, the bubbles were either not uniform, e.g., , or have been generated by only one single inlet nozzle, e.g., . Additionally, most publications considered pseudo‐2D rectangular bubble columns, far from practical configurations.…”
Section: Introductionmentioning
confidence: 99%
“…Additionally, most publications considered pseudo‐2D rectangular bubble columns, far from practical configurations. These studies focused on the hydrodynamics in the bubble columns , . In rectangular bubble columns also the mixing behavior and concentration changes were investigated using fluorescent dyes and LIF in , .…”
Section: Introductionmentioning
confidence: 99%
“…A turbulência gerada pelas bolhas ao ascenderem na coluna é denominado de turbulência induzida. Já a turbulência gerada por uma grade é denominada de turbulência verdadeira (SATHE; JOSHI; EVANS, 2013;HOSOKAWA, TOMIYAMA, 2013).…”
Section: Introductionunclassified
“…A turbulência gerada pelas bolhas ao ascenderem na coluna é denominado de turbulência induzida. Já a turbulência gerada por uma grade é denominada de turbulência verdadeira (SATHE; JOSHI; EVANS, 2013;HOSOKAWA, TOMIYAMA, 2013).Vários experimentos em escoamentos gás-líquido, mostram que a presença da fase dispersa, bolhas, altera consideravelmente a turbulência do líquido. As bolhas induzem flutuações que aumentam a turbulência global, alterando assim os mecanismos de produção, distribuição e dissipação desta (CHAHED; ROIG; MASBERNAT, 2003).…”
unclassified