Journal article
A polydisperse model of the two-phase flow in a bubble column
Heat and Technology, Vol.18(2), pp.101-113
01/01/2000
Abstract
A model for the polydisperse two-phase flow in a bubble column is presented. The model is based on a Boltzmann equation approach to obtain the probability density function for the bubble size. The bubble size distribution can change due to breakup and coalescence phenomena. The velocities were obtained from a two-fluid model that accounts for interfacial momentum transfer arising from drag and virtual mass forces, and momentum transfer between groups due to bubble coalescence and breakup. Area averaging was used to obtain a one-dimensional form of the equations. The system of equations was discretized using a multigroup approach for the bubble size and a control volume method for the axial coordinate. The model was tested against the experimental data measured by Qazi et al. [1] and Guido-Lavalle et al. [2] in a oxygen/water bubble column under various flow conditions. Qualitative comparison was made with the experimental data of Zuber & Hench [3] in a large-section bubble column. Both comparisons showed good agreement between the model and the experimental data.
Details
- Title: Subtitle
- A polydisperse model of the two-phase flow in a bubble column
- Creators
- M PolitanoP CarricaJ Balino
- Resource Type
- Journal article
- Publication Details
- Heat and Technology, Vol.18(2), pp.101-113
- ISSN
- 0392-8764
- Language
- English
- Date published
- 01/01/2000
- Academic Unit
- IIHR--Hydroscience and Engineering
- Record Identifier
- 9984627282502771
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