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He S, Gan J, Pinson D, Yu A, Zhou Z. Particle shape-induced axial segregation of binary mixtures of spheres and ellipsoids in a rotating drum. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116491] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Various experimental and numerical studies have been carried out to study the mixing processes inside rotating drums with a horizontal axis of rotation in the past, but little effort has been made to investigate the rotating drums with an inclined axis of rotation, though such inclined drums exist in industrial waste management, food processing, power and pharmaceutical industries. To fill this gap, in this work, the discrete element method was used to study the mixing phenomena of a rotating drum for different angles of inclination from 0° to 15°. It was found that for inclined rotating drums, the whole bed Lacey mixing index is higher than that for the horizontal drum by 7.2% when the angle of inclination is 10°. The mixing index is related to the area ratio of the active region to the whole bed and volumetric fill. Increase in volumetric fill would lead to the decrease of the mixing index. The mixing index and area ratio exhibit similar patterns along the length of the drum for different angles of inclination.
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Yu F, Zhang Y, Zheng Y, Han M, Chen G, Yao Z. Comparison of different effective diameter calculating methods for sphero-cylinders by geometrically exact DEM simulations. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.10.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yu F, Zhang S, Zhou G, Zhang Y, Ge W. Geometrically exact discrete-element-method (DEM) simulation on the flow and mixing of sphero-cylinders in horizontal drums. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.05.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Gui N, Yang X, Tu J, Jiang S. SIPHPM simulation and analysis of cubic particle mixing patterns and axial dispersion mechanisms in a three-dimensional cylinder. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.04.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Impact of granular segregation on the solid residence time and active-passive exchange in a rotating drum. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.07.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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