Premium
Dynamics of a Bubble Column: Influence of Gas Distribution on Coherent Structures
Author(s) -
Harteveld Wouter K.,
Mudde Robert F.,
Van Den Akker Harrie E. A.
Publication year - 2003
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450810308
Subject(s) - distributor , bubble , mechanics , column (typography) , aeration , flow (mathematics) , circulation (fluid dynamics) , distribution (mathematics) , materials science , scale (ratio) , chemistry , physics , geometry , thermodynamics , mathematics , mathematical analysis , organic chemistry , connection (principal bundle) , quantum mechanics
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.