Dynamics of a Bubble Column: Influence of Gas Distribution on Coherent Structures
- 1 June 2003
- journal article
- research article
- Published by Wiley in The Canadian Journal of Chemical Engineering
- Vol. 81 (3-4) , 389-394
Abstract
The influence of the pattern of gas distribution on the dynamics of a bubble column is studied. LDA and glass fiber probe measurements were performed in a 15 cm column, aerated in well‐controlled patterns using a special distributor. Superficial gas velocities of 0.015 m/s to 0.023 m/s were investigated. Uniform aeration gives very uniform gas distribution. The familiar large‐scale circulation and structures are absent. Non‐uniform gas‐injection introduces dynamic structures in the entrance region. Large‐scale structures are absent in the flow above the entrance region, independent of the gas injection pattern.Keywords
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