| 吴 杰1，张世富2，张起欣1，张冬梅2，王 铭1.取水泵叶轮水力设计及内部流场数值模拟[J].轻工机械,2016,34(2): |
| 取水泵叶轮水力设计及内部流场数值模拟 |
| Impeller Hydraulic Design and Numerical Simulation of Inner Flow Field of Floating Water Pump Vibration Mill with Dual Motors |
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| DOI：10. 3969/j. issn. 1005 -2895. 2016. 02. 002 |
| 中文关键词: 漂浮取水泵 叶轮 水力设计 数值模拟 |
| 英文关键词:floating water pump impeller hydraulic design numerical simulation |
| 基金项目:国家科技支撑计划( 2014BAK05808)；T信部物联网发展专项资金支持（ZX201426903）；重庆市科技攻关计划项目
( cstc2012gg-sfgc00002). |
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| 中文摘要: |
| 为了研究漂浮取水泵内部流场分布规律，根据泵水力设计理论对叶轮进行了参数计算，基于Pro/E建立了叶轮
和内部流场模型，利用FLUENT对内部流场进行了数值模拟，得到了漂浮取水泵的外特性曲线、压力和速度分布规律。
结果表明：泵的功率曲线呈现驼峰状，效率曲线存在较宽的高效区；叶片受静压呈现旋转中心低，边缘高的总体趋势；泵
叶片速度较大，隔舌和扩散管底部速度较小；在额定流量工况下，叶轮表面液流速度分布趋于均匀，流场分布较合理。研
究结果可为优化叶轮几何参数、改善内部流场分布以及提高泵的效率提供一定参考。 |
| 英文摘要: |
| In order to study the distribution of inner flow field of floating water pump, impeller parameter calculation was
performed according to the pump hydraulic design theory. An impeller and inner flow field model were established basing
on Pro/E. FLUENT was used to conduct the numerical simulation of inner flow field and the external characteristic
curves, pressure and velocity distribution were informed. The results show that the power curve appears to be humped,
and there is a broad high efficiency area on efficiency curve. Static pressure of blade presents an overall trend. which is
low value in the center of rotation and high on the edge. The velocity of impeller is larger than that of volute tongue and
diffusion tube bottom. Under the rated flow condition. the velocity of impeller surface flow tends to be equally distributed
and the flow field distribution is rational. It provides certain references for optimization of impeller geometrical
parameters, coordination of inner flow field distributions and improvement of pump efficiency. |
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