Impacts of solid stress model on MP-PIC simulation of a CFB riser with EMMS drag

doi:10.1016/j.powtec.2019.06.018

	Impacts of solid stress model on MP-PIC simulation of a CFB riser with EMMS drag
	Kadyrov, Tagir 1,2; Li, Fei 1; Wang, Wei 1,2
刊名	POWDER TECHNOLOGY
	2019-09-01
卷号	354 页码:517-528
关键词	Solid stress EMMS MP-PIC Meso-scale Simulation Fluidization
ISSN号	0032-5910
DOI	10.1016/j.powtec.2019.06.018
英文摘要	The cluster-based EMMS (energy minimization multi-scale) drag model in combination with MP-PIC (multiphase particle in cell) method can successfully simulate the fluidization behavior in CFBs (circulating fluidized beds). The solid normal stress model is very important to MP-PIC simulations, but still lacks thoroughly investigation, especially in CFB riser simulation. In this work, the effects of parameters from the solid normal stress model have been investigated by using 2D simulations of a laboratory-scale CFB riser with MFIX (Multiphase Flow with Interphase eXchanges) open-source code. The results show that the role of the solid stress parameters is more significant when the solid approaches close packing state. Based on the comparison between simulation results and experimental data and the elapsed simulation time, optimal values for the solid stress model parameters were obtained. The thickness of the third direction for 2D simulations has also been investigated. Increase of the thickness entails additional computational costs with little effect on the accuracy and the recommended value of thickness is the diameter of one single particle. (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Key R&D Program of China[2017YFB0602700] ; National Natural Science Foundation of China[51876212] ; National Natural Science Foundation of China[21625605] ; National Natural Science Foundation of China[21821005] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010202]
WOS关键词	IN-CELL MODEL ; FLUIDIZED-BED ; FLOWS ; GELDART ; VALIDATION ; RESOLUTION ; PARTICLES
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000490625500051
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/31176]
专题	中国科学院过程工程研究所
通讯作者	Li, Fei
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 100049, Peoples R China
推荐引用方式 GB/T 7714	Kadyrov, Tagir,Li, Fei,Wang, Wei. Impacts of solid stress model on MP-PIC simulation of a CFB riser with EMMS drag[J]. POWDER TECHNOLOGY,2019,354:517-528.
APA	Kadyrov, Tagir,Li, Fei,&Wang, Wei.(2019).Impacts of solid stress model on MP-PIC simulation of a CFB riser with EMMS drag.POWDER TECHNOLOGY,354,517-528.
MLA	Kadyrov, Tagir,et al."Impacts of solid stress model on MP-PIC simulation of a CFB riser with EMMS drag".POWDER TECHNOLOGY 354(2019):517-528.