- Title
- CFD-DEM simulation of binary systems of particles in liquid fluidised beds: segregation and dispersion
- Creator
- Peng, Zhengbiao; Khan, Md Shakhaoath; Ghatage, Swapnil V.; Joshi, Jyeshtharaj B.; Evans, Geoffrey M.; Moghtaderi, Behdad; Doroodchi, Elham
- Relation
- Asia Pacific Confederation of Chemical Engineering Congress 2015 (APCChE 2015) incorporating CHEMECA 2015. Proceedings of the APCChE 2015 Congress incorporating CHEMECA 2015 (Melbourne, Vic. 27 September - 1 October, 2015) p. 1844-1853
- Publisher
- Institution of Chemical Engineers
- Resource Type
- conference paper
- Date
- 2015
- Description
- Solid liquid fluidised beds (SLFB) are widely used in industrial processes, where solid particles of different sizes and densities are often encountered. The differences in the physical properties of particles could lead to a partial or complete segregation of one or more solid species, affecting the performance of the fluidised bed. Axial and radial dispersions of solids driven by the complex particle-particle and particle-fluid interactions are considered as the underlying mechanisms for the particles dispersion/segregation in liquid fluidised beds. Predictions of axial and radial particle dispersion for a given SLFB currently rely on a set of parameters obtained experimentally. Whilst this is an acceptable approach for a given system, the resultant model is generally not applicable to the work of others. To overcome this limitation a better understanding of the interactions between the phases is required. In this study, computational fluid dynamics was coupled with the discrete element methodology to capture the fluid mechanics as well as interactions between particle-particle and particle-fluid. The mathematical model was validated by the experimental data.
- Subject
- segregation; solid-liquid fluidised bed; force analysis; CFD-DEM; solid dispersion
- Identifier
- http://hdl.handle.net/1959.13/1330621
- Identifier
- uon:26431
- Identifier
- ISBN:9781922107473
- Language
- eng
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