Number Concentration of Cylindrical Particles in a Fluidized Bed

蔡杰; 赵孝保; 李奇贺; 袁竹林

doi:10.1016/S1004-9541(13)60446-2

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Number Concentration of Cylindrical Particles in a Fluidized Bed

能源、资源与环境技术 | Updated：2026-01-06

- Number Concentration of Cylindrical Particles in a Fluidized Bed
- Chinese Journal of Chemical Engineering Vol. 21, Issue 1, Pages: 94-1031004-954160446-2(2013)
- Affiliations：
  
  2 Thermal-Energy Institute, Southeast University,Nanjing,China,210096
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60446-2
  CLC：
- Published：2013
- Accepted：
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CAI Jie, ZHAO Xiaobao, LI Qihe, YUAN Zhulin. Number Concentration of Cylindrical Particles in a Fluidized Bed[J]. Chin.J.Chem.Eng., 2013, 21(1): 94-103.
DOI：

CAI Jie, ZHAO Xiaobao, LI Qihe, YUAN Zhulin. Number Concentration of Cylindrical Particles in a Fluidized Bed[J]. Chin.J.Chem.Eng., 2013, 21(1): 94-103. DOI： 10.1016/S1004-9541(13)60446-2.

摘要

Abstract

In this study

a three-dimensional model based on RANS

slender-body theory and Newton-Euler dynamics is established to study the number concentration

one of the most important fluidization characteristics of cylindrical particles. Also

the effects of interaction between cylindrical particles are taken into account by introducing the rigid collision dynamics. To validate the model

the fluidization experiments of cylindrical particles in a cold-state fluidized bed are carried out. The number concentration characteristics of cylindrical particles are obtained from computational fluid dynamics (CFD) simulation. It is found that cylindrical particles arriving at the exit of the riser the earliest come from the near-wall regions

the horizontal transfer of so many cylindrical particles from the radial centre regions to the near-wall regions is evident. Meanwhile

there is no distinct relationship between the number concentration and inlet wind velocity.

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