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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. |
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