The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows

doi:10.1016/j.powtec.2018.03.041

	The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows
	Wan, Jiangfeng 1,2; Wang, Fugang 1,3; Yang, Guanghui 1; Zhang, Sheng 1; Wang, Mengke 1,2; Lin, Ping 1; Yang, Lei1
刊名	POWDER TECHNOLOGY
	2018-07-15
卷号	335 页码:147-155
关键词	Hopper granular flow Wear Orifice shape GPU simulations Flow rate
ISSN号	0032-5910
DOI	10.1016/j.powtec.2018.03.041
英文摘要	Abrasive wear of the orifice cannot be avoided for a hopper which should be operated uninterruptedly for a long time in engineering applications. Consequently, the change of the orifice shape will lead to the variation of flow rate for the hopper. In this paper, the influence of orifice shape on the flow rate in ordinary flat-bottom hoppers is investigated both numerically and experimentally. The flow rate increases when the orifice is from sharp to smooth in both flat-bottom and conical-bottom hoppers. The data can be well fitted with a modified Beverloo's formula. The result is supported by the profile of kinetic pressure near the orifice. Moreover, the fluctuation of the instantaneous flow rate is reduced with smooth orifice. In addition, it is found that the diameter of the hopper D and the thickness of the bottom H do not influence the flow rate. This paper contributes to control the flow rate by optimizing the shape of orifice. (C) 2018 Elsevier B.V. All rights reserved.
资助项目	National Magnetic Confinement Fusion Science Program of China[2014GB104002]
WOS关键词	DISCRETE NUMERICAL-MODEL ; BULK SOLIDS ; ELEMENT METHOD ; DISCHARGE ; SIMULATION ; WEAR ; ASSEMBLIES ; DESIGN ; SILO
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000438002400015
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/59685]
专题	中国科学院近代物理研究所
通讯作者	Yang, Lei
作者单位	1.Chinese Acad Sci, Inst Modern Phys, 509 Nanchang Rd, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Northwest Normal Univ, Coll Phys & Elect Engn, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wan, Jiangfeng,Wang, Fugang,Yang, Guanghui,et al. The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows[J]. POWDER TECHNOLOGY,2018,335:147-155.
APA	Wan, Jiangfeng.,Wang, Fugang.,Yang, Guanghui.,Zhang, Sheng.,Wang, Mengke.,...&Yang, Lei.(2018).The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows.POWDER TECHNOLOGY,335,147-155.
MLA	Wan, Jiangfeng,et al."The influence of orifice shape on the flow rate: A DEM and experimental research in 3D hopper granular flows".POWDER TECHNOLOGY 335(2018):147-155.