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.
| Original language | English |
|---|---|
| Pages (from-to) | 389-394 |
| Number of pages | 6 |
| Journal | The Canadian Journal of Chemical Engineering |
| Volume | 81 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 2003 |
| Externally published | Yes |
Keywords
- Bubble column
- Coherent structures
- LDA
- Sparger
- Uniform aeration