Rotation characteristic and granular temperature analysis in a bubbling fluidized bed of binary particles
- Title
- Rotation characteristic and granular temperature analysis in a bubbling fluidized bed of binary particles
- Author
- 김동립
- Keywords
- Smagorinsky constant; Rotational characteristics; Binary mixture particles; Large eddy simulation; Discrete hard sphere model
- Issue Date
- 2015-02
- Publisher
- ELSEVIER SCIENCE INC
- Citation
- PARTICUOLOGY, v. 18, Page. 76-88
- Abstract
- In this work, a discrete particle model (DPM) was applied to investigate the dynamic characteristics in a gas-solid bubbling fluidized bed of binary solid particles. The solid phase was simulated by the hard-sphere discrete particle model. The large eddy simulation (LES) method was used to simulate the gas phase. To improve the accuracy of the simulation, an improved sub-grid scale (SGS) model in the LES method was also applied. The mutative Smagorinsky constant case was compared with the previously published experimental data. The simulation by the mutative Smagorinsky constant model exhibited better agreement with the experimental data than that by the common invariant Smagorinsky constant model. Various restitution coefficients and different compositions of binary solids were investigated to determine their influences on the rotation characteristics and granular temperatures of the particles. The particle translational and rotational characteristic distributions were related to certain simulation parameters. (C) 2014 Published by Elsevier B.V. on behalf of Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.
- URI
- http://www.sciencedirect.com/science/article/pii/S1674200114001096http://hdl.handle.net/20.500.11754/22501
- ISSN
- 1674-2001; 2210-4291
- DOI
- 10.1016/j.partic.2014.02.011
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML