Effect of powdery layer coverage on the sticking and rebound behaviors of ash particle impaction: A DEM study

doi:10.1016/j.powtec.2021.01.007

	Effect of powdery layer coverage on the sticking and rebound behaviors of ash particle impaction: A DEM study
	Zhu, Runru 2; Li, Gengda 3; Zhang, Yiyang 1; Song, Minhang 2; Huang, Yun 2
刊名	POWDER TECHNOLOGY
	2021-04-01
卷号	382 页码:388-397
关键词	Impaction Powdery layer DEM Sticking probability Restitution coefficient
ISSN号	0032-5910
DOI	10.1016/j.powtec.2021.01.007
英文摘要	The sticking and rebound behaviors of particle impaction is crucial for the prediction of ash particle deposition. In this work, we use discrete element method (DEM) to study the effect of powdery layer coverage on the sticking and rebound behaviors of particle impaction. Especially, to account for the stochasticity, 50 similar cases are simulated for each set of parameters followed by statistical analysis. The result indicates that the powdery layer plays a major role in dissipating the kinetic energy of the incident particle. The curve of the sticking probability shows a fast drop as the incident velocity increases to a certain value. This critical incident velocity scales proportionally with the layer thickness. The size ratio, defined as the incident particle diameter versus particle diameter in the layer, is the key parameter that determines the mechanism of energy dissipation. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	"Thirteenth Five-Year" National Key R&D Programof China[2018YFC1903000] ; National Natural Science Funds of China[51776109] ; China Energy Science and Technology Project[GJNY-18-27] ; Jiangsu Province Science and Technology Achievements Transformation Special Funding Project[BA2020056] ; LingChuang Research Project of China National Nuclear Corporation
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000617930400011
资助机构	"Thirteenth Five-Year" National Key R&D Programof China ; National Natural Science Funds of China ; China Energy Science and Technology Project ; Jiangsu Province Science and Technology Achievements Transformation Special Funding Project ; LingChuang Research Project of China National Nuclear Corporation
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/43479]
专题	中国科学院过程工程研究所
通讯作者	Zhang, Yiyang
作者单位	1.Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Key Lab Adv Reactor Engn & Safety,Minist Educ, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Guodian New Energy Technol Res Inst Co Ltd, Beijing 102209, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Runru,Li, Gengda,Zhang, Yiyang,et al. Effect of powdery layer coverage on the sticking and rebound behaviors of ash particle impaction: A DEM study[J]. POWDER TECHNOLOGY,2021,382:388-397.
APA	Zhu, Runru,Li, Gengda,Zhang, Yiyang,Song, Minhang,&Huang, Yun.(2021).Effect of powdery layer coverage on the sticking and rebound behaviors of ash particle impaction: A DEM study.POWDER TECHNOLOGY,382,388-397.
MLA	Zhu, Runru,et al."Effect of powdery layer coverage on the sticking and rebound behaviors of ash particle impaction: A DEM study".POWDER TECHNOLOGY 382(2021):388-397.