Kinematic waves and collision effects in dense fluid-particle flow during hydraulic conveying

doi:10.1016/j.ijmultiphaseflow.2023.104643

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Kinematic waves and collision effects in dense fluid-particle flow during hydraulic conveying
	Zhang, Yan 2; Liu, Yang 1; Ren, Wanlong 2; Li, Peng 2; Zhang, Xuhui 2; Lu, Xiaobing 2
刊名	INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
	2024
卷号	170 页码:14
关键词	Fluid-particle two-phase flow Particle-laden flow Kinematic waves Hydraulic conveying CFD-DEM
ISSN号	0301-9322
DOI	10.1016/j.ijmultiphaseflow.2023.104643
通讯作者	Zhang, Xuhui(zhangxuhui@imech.ac.cn)
英文摘要	The effects of fluid-particle and particle-particle interactions on the kinematic waves and particle dynamics in a vertical pipe with continuous upward fluid flow are investigated. The unresolved computational fluid dynamics-discrete element method, in which fluid flow field is modeled using large eddy simulation with dynamic Smagorinsky model for the eddy viscosity, is used to simulate the conveying process for particle Reynolds numbers within 8000 and 40000. The results imply that it can show kinematic waves and determine wave velocity based on the wave frequency and wave number relationships, which is also found to closely agree with the theory of kinematic waves based on the Richardson-Zaki relation. One feature is that the kinematic wave velocity in hydraulic conveying manifests itself in relation to the upward fluid velocity. In addition, two different flow regimes are found in the simulation. For relative low particle Reynolds numbers (8000< Re-p <16000), the collision and hydrodynamic effects are equally important (regime 1). As the particle Reynolds number increases, the relative significance of collision effects increases. At Re-p=16000, the collision effects go beyond the hydrodynamic effects, leading to the flow regime transition (regime 2). The increase of the collision effects also makes the particles uniformly distributed.
资助项目	National Natural Science Foundation of China[12302516] ; National Natural Science Foundation of China[12132018] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017027]
WOS关键词	NUMERICAL SIMULATIONS ; BEDS ; MODEL ; INSTABILITIES ; TRANSPORT ; SUSPENSIONS ; STABILITY ; VELOCITY ; SYSTEMS ; SOLIDS
WOS研究方向	Mechanics
语种	英语
WOS记录号	WOS:001104753400001
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93411]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Zhang, Xuhui
作者单位	1.State Key Lab Intelligent Construct & Hlth Operat, Xuzhou 221116, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yan,Liu, Yang,Ren, Wanlong,et al. Kinematic waves and collision effects in dense fluid-particle flow during hydraulic conveying[J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,2024,170:14.
APA	Zhang, Yan,Liu, Yang,Ren, Wanlong,Li, Peng,Zhang, Xuhui,&Lu, Xiaobing.(2024).Kinematic waves and collision effects in dense fluid-particle flow during hydraulic conveying.INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,170,14.
MLA	Zhang, Yan,et al."Kinematic waves and collision effects in dense fluid-particle flow during hydraulic conveying".INTERNATIONAL JOURNAL OF MULTIPHASE FLOW 170(2024):14.