Investigation on the Flow Field Upstream of a Centrifugal Pump Impeller
Investigation on the Flow Field Upstream of a Centrifugal Pump Impeller
复制标题
离心泵叶轮上游流场研究
DOI：
10.5293/ijfms.2011.4.1.209
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发表时间：
2011-03
影响因子：
--
通讯作者：
Hongyuan Xu
中科院分区：
文献类型：
--
作者：
Yao Zhang;Xianwu Luo;Yunchi Yi;Baotang Zhuang;Hongyuan Xu
采用实验和数值模拟两种方法对离心泵叶轮上游流动进行了研究。在实验研究中，采用PIV法测量了泵入口处四个截面的流场。为了进行计算，基于RANS方程结合RNG k-湍流模型对泵全流道的三维湍流进行了模拟。结果表明，在设计载荷和四分之一载荷工况下，泵的吸入管内均存在与叶轮旋转方向一致的预旋流，且各段预旋速度在较高转速下均明显增大。在四分之一负荷工况下，由于泵叶轮上游的不利流动，叶片吸力面低压区较大。
The flow upstream of a centrifugal pump impeller has been investigated by both experimental test and numerical simulation. For experimental study, the flow field at four sections in the pump suction is measured by using PIV method. For calculation, the three dimensional turbulent flow for the full flow passage of the pump is simulated based on RANS equations combined with RNG k- turbulence model. From those results, it is noted that at both design lo ad and quarter load condition, the pre-swirl flow whose direction is the same as the impeller rotation exists at all four sections in suction pipe of the pump, and at each section, the pre-swirl velocity becomes obviously larger at higher rotational speed. It is also indicated that at quarter load condition, the low pressure region at suction surface of the vane is large because of the unfavorable flow upstream of the pump impeller.
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DOI：
10.1243/0957650011538550
发表时间：
2001-01
期刊：
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
影响因子：
--
作者：
Yunbae Kim;A. Engeda;R. Aungier;Gregory L. Direnzi
通讯作者：
Yunbae Kim;A. Engeda;R. Aungier;Gregory L. Direnzi
影响因子：
2.3
作者：
A. Predin;I. Biluš
通讯作者：
A. Predin;I. Biluš
影响因子：
4.2
作者：
Tonghai Wu
通讯作者：
Tonghai Wu
DOI：
10.1115/fedsm2009-78297
发表时间：
2009
期刊：
--
影响因子：
--
作者：
Jianjun Feng;F. Benra;H. Dohmen
通讯作者：
Jianjun Feng;F. Benra;H. Dohmen
DOI：
10.1299/jpes.2.985
发表时间：
2007
期刊：
Journal of Power and Energy Systems
影响因子：
--
作者：
T. Matsunuma
通讯作者：
T. Matsunuma