Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
160352 | Chemical Engineering Science | 2007 | 8 Pages |
Abstract
This paper presents a 2D soft-sphere discrete element method (DEM) simulation study of bubble formation in fluidized beds of Geldart Group B powders with and without externally imposed cohesive interparticle force. The effect of interparticle force on bubble formation and bubble characteristics is studied by inducing a single bubble at the centre of the distributor of a 2D bed that contains 36 000 mono-sized particles having a diameter of 500μm and density of 1000kgm-3. It is observed that in the presence of externally imposed cohesive interparticle force, the bubble formation process not only requires a higher air velocity for its initiation, but it is also slower when compared to the case with no interparticle force.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Jai Kant Pandit, X.S. Wang, M.J. Rhodes,