Abstract
Flow turbulence generated by a bubble plume in a large tank is characterized. Two different turbulence mechanisms contributing to the mixing and transport process are identified on velocity signals recorded outside of the bubble-plume core: a macro-scale process governed by the wandering motion of the bubble-plume; and an intermediate- and micro-scale process represented by the Kolmogorov power spectrum. A methodology is presented to characterize the different processes and their contributions to the turbulence parameters. The results help to understand the bubble-plume phenomenon and provide a basis to validate numerical models of bubble-plumes used in the design of combined-sewer-overflow reservoirs.
Original language | English (US) |
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Pages (from-to) | 91-101 |
Number of pages | 11 |
Journal | Experiments in Fluids |
Volume | 41 |
Issue number | 1 |
DOIs | |
State | Published - Jul 2006 |
ASJC Scopus subject areas
- Computational Mechanics
- Mechanics of Materials
- General Physics and Astronomy
- Fluid Flow and Transfer Processes