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- W4286751381 startingPage "117758" @default.
- W4286751381 abstract "Solid-liquid rotary drums have been widely practised in various industries, while the complex multiphase hydrodynamics hinders the understanding and optimisation of these apparatuses. In this work, the computational fluid dynamics-discrete element methoddata (CFD-DEM) coupled with volume of fluid (VOF) is developed to describe the gas-solid-liquid flow and mixing behaviours in a rotary drum considering inter-particle collisions, inter-phase interactions, and interface morphology. A smoothing method is used to link the quantities between the particle and computational grids, allowing the fine grids to resolve flow details such as the gas-liquid interface position and curvature. After model validations, the typical mixing behaviours of gas-solid-liquid flow in a rotary drum are studied. The effects of liquid presence and rotating speed on particle-scale behaviours (e.g., repose angle, active-passive zone depth, solid residence time and contact force chain) and the time evolved mixing performance (e.g., mixing index and dispersion) are studied. The results show a positive correlation of the active depth, mixing degree, and particle dispersion with the rotating speed. The liquid presence leads to a deeper active depth, prolonged solid residence time in the active zone, and lower contact force. The work sheds light on the design and process optimization of rotary drums." @default.
- W4286751381 created "2022-07-23" @default.
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- W4286751381 date "2022-09-01" @default.
- W4286751381 modified "2023-10-16" @default.
- W4286751381 title "Modelling of gas-solid-liquid flow and particle mixing in a rotary drum" @default.
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- W4286751381 doi "https://doi.org/10.1016/j.powtec.2022.117758" @default.
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