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- Title
分区多流域提升管 EMMS 曳力模型的构建.
- Authors
杜玉朋; 杨朝合; 朱迪
- Abstract
Considering the phenomenon of gas-solid flow caused by the particle clusters in the circulating fluidized bed (CFB) riser, the energy minimum multi-scale method (EMMS)-based drag model was developed in this study. And the drag model was coupled with the two-phase flow model of CFD for simulations of a conventional riser and a novel multi-regime riser. It is found that the developed drag model can reasonably predict the flow distributions on both axial and radial directions, which leads to the correct characterization of the gas-solid flow in the riser. An appropriate drag models is needed when the configuration and operational conditions in CFB riser are changed.
- Subjects
FLUIDIZATION; CIRCULATING fluidized bed combustion; COMPUTER simulation of two-phase flow; COMPUTER simulation of gas flow; BULK solids flow
- Publication
Journal of China University of Petroleum, 2017, Vol 41, Issue 1, p176
- ISSN
1673-5005
- Publication type
Article
- DOI
10.3969/j.issn.1673-5005.2017.01.024