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CFD Simulation of Hydrodynamics of Three-Dimensional Circulating Fluidized Beds with EMMS Model
Tu, Q.; Wang, H. G.; Zhou, H.; Wang, W.
2017
Conference Name7th International Conference on Discrete Element Methods (DEM)
Source PublicationPROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON DISCRETE ELEMENT METHODS
Volume188
Issue00
Pages1013
Conference DateAUG 01-04, 2016
Conference PlaceDalian Univ Technol, Dalian, PEOPLES R CHINA
Abstract

Unlike the conventional drag models which were developed on the basis of experiments with homogeneous system, energy minimization multi-scale (EMMS) drag model takes into account the heterogeneous structure inside the gas-solid flow. In this paper, the transient three-dimensional full-loop gas-solid flow in a pilot scale circulating fluidized bed (CFB) with six cyclones was simulated in the computational particle fluid dynamics (CPFD) method, based on EMMS. Particle volume fraction distribution, time averaged pressure profile, and averaged particle vertical velocity were analyzed and presented. The results show that under the simulation condition, in the dense region, particles agglomerate and form clusters; pressure drop evaluation of the dense region is still far away from the experimental data but better than using Wen-Yu model; vertical velocity profile shows core-annulus structure.

KeywordFull-loop Simulation Gas-solid Flow
DOI10.1007/978-981-10-1926-5_106
WOS IDWOS:000416515400106
Citation statistics
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23539
Collection研究所(批量导入)
Corresponding AuthorTu, Q.
Recommended Citation
GB/T 7714
Tu, Q.,Wang, H. G.,Zhou, H.,et al. CFD Simulation of Hydrodynamics of Three-Dimensional Circulating Fluidized Beds with EMMS Model[C],2017:1013.
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