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Parametric study for MP-PIC simulation of bubbling fluidized beds with Geldart A particles
Feng, Meiyan1; Li, Fei1; Wang, Wei1,2; Li, Jinghai1,2
2018-04-01
发表期刊POWDER TECHNOLOGY
ISSN0032-5910
卷号328页码:215-226
摘要This is a parametric study for multi-phase particle in cell (MP-PIC) simulation of bubbling fluidized beds with Geldart A particles using the open source MFIX program. The main parameters have been studied including drag models, grid resolution and number of particles per parcel (PPP). And the calculated axial/radial solid distribution and bed height are compared with the experimental data for validation. It is shown that the drag model can significantly affect the calculation results of bubbling fluidized bed with Geldart A particles. Specifically, the Energy Minimization Multi-scale (EMMS) bubbling drag model can predict right bubbling phenomenon and also improve the accuracy compared to the homogeneous drag model. Bubble analysis shows that there exists a stable average bubble diameter when the bed becomes stable. The average bubble circularities are about 0.5 for the two bubbling bed studied in this work, even though they have different average bubble diameter. Parameter analysis shows that the accuracy of the calculated results improves with decreasing grid size or PPP. There exists a threshold value for grid size/PPP, below which, grid/PPP independent result can be obtained. The PPP plays the similar role to grid resolution in MP-PIC simulation. (C) 2018 Elsevier B.V. All rights reserved.
关键词Bubbling Fluidized Bed Multiphase Flow Mp-pic Emms Drag Model
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.powtec.2018.01.024
收录类别SCI
语种英语
关键词[WOS]GAS-SOLID FLOWS ; NUMERICAL-SIMULATION ; EULERIAN SIMULATION ; DRAG COEFFICIENT ; CFD SIMULATION ; 2-PHASE FLOW ; RISER FLOWS ; MODEL ; VALIDATION ; DYNAMICS
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Key R&D Program of China(2017YFB0602701-04) ; National Natural Science Foundation of China(91334204 ; 21625605)
WOS记录号WOS:000428833600022
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24171
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100490, Peoples R China
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Feng, Meiyan,Li, Fei,Wang, Wei,et al. Parametric study for MP-PIC simulation of bubbling fluidized beds with Geldart A particles[J]. POWDER TECHNOLOGY,2018,328:215-226.
APA Feng, Meiyan,Li, Fei,Wang, Wei,&Li, Jinghai.(2018).Parametric study for MP-PIC simulation of bubbling fluidized beds with Geldart A particles.POWDER TECHNOLOGY,328,215-226.
MLA Feng, Meiyan,et al."Parametric study for MP-PIC simulation of bubbling fluidized beds with Geldart A particles".POWDER TECHNOLOGY 328(2018):215-226.
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