Application of the discrete element modelling in air drying of particulate solids

Li, Jintang and Mason, David (2002) Application of the discrete element modelling in air drying of particulate solids Drying Technology, 20 (2). pp. 255-282. ISSN 1532-2300

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The Discrete Element Method (DEM) has been widely used as a mathematical tool for the study of flow characteristics involving particulate solids. One distinct advantage of this fast developing technique is the ability to compute trajectories of discrete particles. This provides the opportunity to evaluate the interactions between particle, fluid and boundary at the microscopic level using local gas parameters and properties, which is difficult to achieve using a continuum model. To date, most of these applications focus on the flow behaviour. This paper provides an overview of the application of DEM in gas–solids flow systems and discusses further development of this technique in the application of drying particulate solids. A number of sub-models, including momentum, energy and mass transfer, have been evaluated to describe the various transport phenomena. A numerical model has been developed to calculate the heat transfer in a gas–solids pneumatic transport line. This implementation has shown advantages of this method over conventional continuum approaches. Future application of this technique in drying technology is possible but experimental validation is crucial.

Item Type: Journal article
Additional Information: This is an Author's Accepted Manuscript of an article published in Drying Technology, 20, 2, 2002, copyright Taylor & Francis, available online at:
Uncontrolled Keywords: gas-solids flow; mathematical simulation; momentum, heat and mass transfer
Subjects: H000 Engineering > H300 Mechanical Engineering
DOI (a stable link to the resource): 10.1081/DRT-120002542
Faculties: Faculty of Science and Engineering > School of Computing, Engineering and Mathematics > Engineering and Product Design Research
Depositing User: editor engineering
Date Deposited: 06 Sep 2007
Last Modified: 26 Mar 2015 14:49

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