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- W3030727192 abstract "Abstract In this work, a multi-fluid model based on the Eulerian-Eulerian framework is used to study the gas-solid hydrodynamics, such as solid distribution, particle motion and solid velocity, in a three-dimensional (3D) dual circulating fluidized bed (DCFB). The influence of four different drag force models, including two classic models, i.e. Gidaspow, EMMS drag model and two recent drag models, i.e. Rong and Tang drag model, on hydrodynamics in DCFB are assessed. Numerical results show that the characteristics of solid distribution and velocity in different sections are distinct. For qualitative analysis, all the drag models can predict a reasonable radial solid distribution and pressure distribution, but only the EMMS, Rong and Tang drag model can capture the phenomenon of dense solid concentration in the low part. For quantitative analysis, the solid circulating rate predicted by the EMMS drag model is the closest to the experimental value while the Gidaspow drag model shows the most significant deviation. The overall assessments confirm that the drag model selection has a significant influence on the simulations of gas-solid flow in DCFBs. This study sheds lights on the design and optimization of fluidized bed apparatuses." @default.
- W3030727192 created "2020-06-05" @default.
- W3030727192 creator A5008465375 @default.
- W3030727192 creator A5040945918 @default.
- W3030727192 date "2020-07-01" @default.
- W3030727192 modified "2023-09-24" @default.
- W3030727192 title "Multi-fluid modelling of hydrodynamics in a dual circulating fluidized bed" @default.
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- W3030727192 doi "https://doi.org/10.1016/j.apt.2020.05.010" @default.
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