Investigation of the Flow in the Impeller Side Clearances of a Centrifugal Pumpwith Volute Casing
文献类型：期刊论文
| 作者 | Bjorn-Christian Will; Friedrich-Karl Benra; Hans-Josef Dohmen |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2012 |
| 卷号 | 21期号:3页码:197,208 |
| 关键词 | Cavity Rotor-stator Cavities Side Chambers Centrifugal Pump |
| 英文摘要 | The paper is concerned with the fluid flow in the impeller side clearances of a centrifugal pump with volute casing. The flow conditions in these small axial gaps are of significant importance for a number of effects such as disk friction, leakage losses or hydraulic axial thrust to name but a few. In the investigated single stage pump, the flow pattern in the volute turns out to be asymmetric even at design flow rate. To gain a detailed insight into the flow structure, numerical simulations of the complete pump including the impeller side clearances are accomplished. Additionally, the hydraulic head and the radial pressure distributions in the impeller side clearances are measured and compared with the numerical results. Two configurations of the impeller, either with or without balancing holes, are examined. Moreover, three different operating points, i.e.: design point, part load or overload conditions are considered. In addition, analytical calculations are accomplished to determine the pressure distributions in the impeller side clearances. If accurate boundary conditions are available, the 1D flow models used in this paper can provide reasonable results for the radial static pressure distribution in the impeller side clearances. Furthermore, a counter rotating wake region develops in the rear impeller side clearances in absence of balancing holes which severely affects the inflow and outflow conditions of the cavity in circumferential direction. |
| 公开日期 | 2013-01-07 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/51751]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science |
| 推荐引用方式 GB/T 7714 | Bjorn-Christian Will,Friedrich-Karl Benra,Hans-Josef Dohmen. Investigation of the Flow in the Impeller Side Clearances of a Centrifugal Pumpwith Volute Casing[J]. JOURNAL OF THERMAL SCIENCE,2012,21(3):197,208. |
| APA | Bjorn-Christian Will,Friedrich-Karl Benra,&Hans-Josef Dohmen.(2012).Investigation of the Flow in the Impeller Side Clearances of a Centrifugal Pumpwith Volute Casing.JOURNAL OF THERMAL SCIENCE,21(3),197,208. |
| MLA | Bjorn-Christian Will,et al."Investigation of the Flow in the Impeller Side Clearances of a Centrifugal Pumpwith Volute Casing".JOURNAL OF THERMAL SCIENCE 21.3(2012):197,208. |
入库方式： OAI收割
来源：工程热物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。