Numerical simulation for rotor-stator interaction of centrifugal pump with different tongues

被引：0

作者：

Zhu L. ^{[1
]}

Yuan S. ^{[1
]}

Yuan J. ^{[1
]}

Zhou J. ^{[1
]}

Jin R. ^{[1
]}

Wang H. ^{[1
]}

机构：

[1] Research Center of Fluid Machinery Engineering and Technology, Jiangsu University

来源：

Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | 2011年 / 27卷 / 10期

关键词：

Centrifugal pump; Numerical simulation; Pressure fluctuation; Radial hydraulic force; Rotor-stator interaction;

D O I：

10.3969/j.issn.1002-6819.2011.10.009

中图分类号：

学科分类号：

摘要：

In order to study rotor-stator interaction with different tongues of the centrifugal pump, the three-dimensional unsteady flow in the centrifugal pump with long-tongue, middle-tongue and short-tongue respectively, was simulated numerically using the dynamical subgrid-scale models. Variable characters of pressure fluctuation and radial hydraulic force on the impeller and volute with different tongues were achieved with a comparison was done. The results indicate that: as a result of the rotor-stator interaction, the distributions of the radial hydraulic force on the impeller vector coordinates have a obvious character of hexagonal star with different tongues under different running conditions and the distributions of the radial hydraulic force on the volute vector coordinates are presented ellipse using different tongues under different running conditions; the head increases and high efficiency area of the pump broaden using short-tongue; the radial hydraulic force on the impeller and volute changes with time; the pressure fluctuations near tongue and the radial hydraulic forces on the impeller of pumps decrease using middle-tongue and short-tongue.

引用

页码：50 / 55

页数：5

共 14 条

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