Fluidisation of spherocylindrical particles: computational fluid dynamics–Discrete element method simulation and experimental investigation
ABSTRACTThe fluidisation of spherocylindrical particles is often involved in the fields of biomass combustion, drug delivery and food drying. By spherocylindrical particles, we mean elongated spherical particles like non-spherical capsule pills and pulverised biomass fuels. Mastering the fluidisatio...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-12-01
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| Series: | Engineering Applications of Computational Fluid Mechanics |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/19942060.2023.2297537 |
| _version_ | 1797367355282554880 |
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| author | Ling Zhou Bo Wang Yupeng Cao Zhenjiang Zhao Ramesh Agarwal |
| author_facet | Ling Zhou Bo Wang Yupeng Cao Zhenjiang Zhao Ramesh Agarwal |
| author_sort | Ling Zhou |
| collection | DOAJ |
| description | ABSTRACTThe fluidisation of spherocylindrical particles is often involved in the fields of biomass combustion, drug delivery and food drying. By spherocylindrical particles, we mean elongated spherical particles like non-spherical capsule pills and pulverised biomass fuels. Mastering the fluidisation state of spherocylindrical particles can improve the related industrial processes. In this paper, a coupled CFD–DEM method is used and the reliability of the model in this paper is verified with the help of high-speed photography experiments. Subsequently, the fluidisation characteristics of spherocylindrical particles in a spouted bed were investigated under different operating conditions and compared with the simulation results of spherical particles. The results show that the gas velocity influences the average bed height, axial velocity, volume fraction, orientation angle, and mixing mass of the particles. There are also significant differences in the fluidisation characteristics of particles at different bed heights. The particles in the higher bed region are more dispersed, the gas–solid mixing is more intense, and the gas velocity has a strong influence on the volume fraction/axial velocity of the spherocylindrical particles in the higher bed. In addition, this work also found significant differences in the fluidisation characteristics of different shaped particles. |
| first_indexed | 2024-03-08T17:16:10Z |
| format | Article |
| id | doaj.art-d1b2915df1554cecb8bc61b89c8b351e |
| institution | Directory Open Access Journal |
| issn | 1994-2060 1997-003X |
| language | English |
| last_indexed | 2024-03-08T17:16:10Z |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Engineering Applications of Computational Fluid Mechanics |
| spelling | doaj.art-d1b2915df1554cecb8bc61b89c8b351e2024-01-03T11:22:58ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2024-12-0118110.1080/19942060.2023.2297537Fluidisation of spherocylindrical particles: computational fluid dynamics–Discrete element method simulation and experimental investigationLing Zhou0Bo Wang1Yupeng Cao2Zhenjiang Zhao3Ramesh Agarwal4Research Center of Fluid Machinery Engineering & Technology, Jiangsu University, Zhenjiang, People’s Republic of ChinaResearch Center of Fluid Machinery Engineering & Technology, Jiangsu University, Zhenjiang, People’s Republic of ChinaSchool of Mechanical Engineering, Nantong University, Nantong, People’s Republic of ChinaResearch Center of Fluid Machinery Engineering & Technology, Jiangsu University, Zhenjiang, People’s Republic of ChinaCFD Lab, Washington University in St. Louis, St. Louis, USAABSTRACTThe fluidisation of spherocylindrical particles is often involved in the fields of biomass combustion, drug delivery and food drying. By spherocylindrical particles, we mean elongated spherical particles like non-spherical capsule pills and pulverised biomass fuels. Mastering the fluidisation state of spherocylindrical particles can improve the related industrial processes. In this paper, a coupled CFD–DEM method is used and the reliability of the model in this paper is verified with the help of high-speed photography experiments. Subsequently, the fluidisation characteristics of spherocylindrical particles in a spouted bed were investigated under different operating conditions and compared with the simulation results of spherical particles. The results show that the gas velocity influences the average bed height, axial velocity, volume fraction, orientation angle, and mixing mass of the particles. There are also significant differences in the fluidisation characteristics of particles at different bed heights. The particles in the higher bed region are more dispersed, the gas–solid mixing is more intense, and the gas velocity has a strong influence on the volume fraction/axial velocity of the spherocylindrical particles in the higher bed. In addition, this work also found significant differences in the fluidisation characteristics of different shaped particles.https://www.tandfonline.com/doi/10.1080/19942060.2023.2297537Fluidisationspherocylindrical particlesCFD–DEMspouted bedparticle mixing |
| spellingShingle | Ling Zhou Bo Wang Yupeng Cao Zhenjiang Zhao Ramesh Agarwal Fluidisation of spherocylindrical particles: computational fluid dynamics–Discrete element method simulation and experimental investigation Engineering Applications of Computational Fluid Mechanics Fluidisation spherocylindrical particles CFD–DEM spouted bed particle mixing |
| title | Fluidisation of spherocylindrical particles: computational fluid dynamics–Discrete element method simulation and experimental investigation |
| title_full | Fluidisation of spherocylindrical particles: computational fluid dynamics–Discrete element method simulation and experimental investigation |
| title_fullStr | Fluidisation of spherocylindrical particles: computational fluid dynamics–Discrete element method simulation and experimental investigation |
| title_full_unstemmed | Fluidisation of spherocylindrical particles: computational fluid dynamics–Discrete element method simulation and experimental investigation |
| title_short | Fluidisation of spherocylindrical particles: computational fluid dynamics–Discrete element method simulation and experimental investigation |
| title_sort | fluidisation of spherocylindrical particles computational fluid dynamics discrete element method simulation and experimental investigation |
| topic | Fluidisation spherocylindrical particles CFD–DEM spouted bed particle mixing |
| url | https://www.tandfonline.com/doi/10.1080/19942060.2023.2297537 |
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