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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
会议名称7th International Conference on Discrete Element Methods (DEM)
会议录名称PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON DISCRETE ELEMENT METHODS
卷号188
期号00
页码1013
会议日期AUG 01-04, 2016
会议地点Dalian Univ Technol, Dalian, PEOPLES R CHINA
摘要

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.

关键词Full-loop Simulation Gas-solid Flow
DOI10.1007/978-981-10-1926-5_106
WOS记录号WOS:000416515400106
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文献类型会议论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23539
专题研究所(批量导入)
通讯作者Tu, Q.
推荐引用方式
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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