The effects of impeller rotation speed on gas-solid-liquid three-phase flow in flotation mixture domain

	The effects of impeller rotation speed on gas-solid-liquid three-phase flow in flotation mixture domain
	Han, Wei1 ; Su, Min2 ; Li, Ren-Nian1 ; Li, Qi-Fei1
	2010-12-01
发表期刊	Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
ISSN	0253231X
卷号	31 期号:SUPPL.页码:77-80
摘要	In order to analyze the effect of rotation rate of impeller on gas-liquid-solid three-phase flow in flotation mixture domain, the flow process of flotation procedure in a mechanical-agitated externally-aerated flotation is simplified. The gas-solid-liquid three-phase three-dimension turbulent flow fields are simulated numerically with the control equations including mixture multi-phase model, RNG k-Ε turbulent model. The simulation results of axial speed, radial speed, volume fraction distribution in the mixture zone are given with different rotation rates. The simulation results show that the axial speed components of gas and solid first decrease and then increase, on the contrary, the values of radial velocity components increase first and then decrease. As the rotational speed increases, the values of axial velocity and radial velocity, volume fraction of gas-solid two phases at the same radial position usually increase with the same aerated pressure which also shows the importance influence of rotational speed of the impeller on the flow characteristics of the mechanical and pneumatic flotation.
关键词	Flotation Impellers Liquids Rotation Speed Turbulent flow Volume fraction Control equations Flow charac-teristics Gas liquid solid three phase Impeller rotation Rotation speed Three dimensions Three-phase flow Volume fraction distribution
收录类别	EI
语种	中文
出版者	Science Press
EI入藏号	20110313592804
EI主题词	Gases
EI分类号	601.2 Machine Components - 631.1 Fluid Flow, General - 641.1 Thermodynamics - 802.3 Chemical Operations - 931.1 Mechanics
来源库	Compendex
分类代码	601.2 Machine Components - 631.1 Fluid Flow, General - 641.1 Thermodynamics - 802.3 Chemical Operations - 931.1 Mechanics
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111401
专题	能源与动力工程学院电气工程与信息工程学院新能源学院
作者单位	1.College of Fluid Energy and Power, Lanzhou University of technology, Lanzhou 730050, China; 2.College of Electrical and Information Engineering, Lanzhou University of technology, Lanzhou 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Han, Wei,Su, Min,Li, Ren-Nian,et al. The effects of impeller rotation speed on gas-solid-liquid three-phase flow in flotation mixture domain[J]. Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics,2010,31(SUPPL.):77-80.
APA	Han, Wei,Su, Min,Li, Ren-Nian,&Li, Qi-Fei.(2010).The effects of impeller rotation speed on gas-solid-liquid three-phase flow in flotation mixture domain.Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics,31(SUPPL.),77-80.
MLA	Han, Wei,et al."The effects of impeller rotation speed on gas-solid-liquid three-phase flow in flotation mixture domain".Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics 31.SUPPL.(2010):77-80.