Abstract
To investigate the hydrodynamic behaviour of industrial scale bubbling fluidised bed reactors, a 3D Discrete Bubble Model (DBM) has been developed. In the DBM, an Euler-Lagrange model, the bubbles are treated as discrete elements and the bubble trajectories are tracked individually, while the emulsion phase is considered as a continuum and is described with the continuity and Navier-Stokes equations. The main advantage of the DBM is that it fully accounts for the two-way coupling, allowing computation of the prevailing macroscopic circulation patterns in large scale gas-fluidised beds. In this paper, we have examined the effect of bubble-bubble (wake) interactions on the macro-scale velocity profiles using the DBM. It has been found that the extent of the macroscopic circulation is significantly increased by the bubble-bubble interaction forces
Original language | Undefined |
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Title of host publication | Conference Proceedings of CFD-2006 |
Place of Publication | Melbourne |
Pages | - |
Number of pages | 6 |
Publication status | Published - 13 Dec 2007 |
Event | Fifth International Conference on CFD in the Process Industries - Melbourne, Australia Duration: 13 Dec 2006 → 15 Dec 2006 |
Conference
Conference | Fifth International Conference on CFD in the Process Industries |
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Period | 13/12/06 → 15/12/06 |
Other | 13-15 December 2006 |
Keywords
- METIS-236213
- IR-69263