| 节段式多级离心泵全三维湍流场的数值模拟 |
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| 引用本文： | 黄思,周先华. 节段式多级离心泵全三维湍流场的数值模拟[J]. 西华大学学报(自然科学版), 2005, 24(6): 37-39,42 |
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| 作者姓名： | 黄思 周先华 |
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| 作者单位： | 华南理工大学工业装备与控制工程学院,广东,广州,510641;上海东方泵业集团公司,上海,200092 |
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| 摘 要： | 选取工业中常用的DF型多级离心泵作为研究对象,数值计算使用了FLUENT软件及其RNG k-ε湍流模型和多重参考坐标系,实现了节段式多级离心泵任意一整级（包括叶轮导叶在内）的全三维流场的数值模拟.模拟结果显示在叶轮出口与导叶入口衔接处,叶轮出流因受到导叶叶片头部的阻挡干扰,导致局部流体逆叶轮旋转方向运动.液流的静压值在正导叶出口附近达到泵级内最大值,进入反导叶后因沿程出现的水力损失静压值略有降低.计算结果得到了泵外特性实测值的验证.
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| 关 键 词： | 多级离心泵 全三维流场 数值模拟 FLUENT |
| 文章编号： | 1673-159X（2005）05-0037-03 |
| 收稿时间： | 2005-06-06 |
| 修稿时间： | 2005-06-06 |
Numerical Simulation of 3-D Turbulent Flow Field in a Multistage Centrifugal Pump |
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| HUANG Si,ZHOU Xian-hua. Numerical Simulation of 3-D Turbulent Flow Field in a Multistage Centrifugal Pump[J]. Journal of Xihua University(Natural Science Edition), 2005, 24(6): 37-39,42 |
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| Authors: | HUANG Si ZHOU Xian-hua |
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| Affiliation: | 1. Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510641 China; 2. Shanghai Oriental Pumps Corporation, Shanghai 200092 China |
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| Abstract: | A three-dimensional turbulent flow through a multistage centrifugal pump is numerically simulated using FLUENT software, including flow fields in impeller and diffuser. The analysis is completed in a multiple reference frame with RING k- turbulence models. It is displayed in simulation that the flow is disturbed in the zone near the impeller exit and diffuser entrance, resulting in flow field asymmetric and unsteady. The static pressure of the stage reaches its maximum value at the exit of the front diffuser, drops some degree in the back side of diffuser due to hydraulic loss. The results obtained from current computation is verified by ones measured, which shows that the simulation approach for multistage centrifugal pumps is practical and feasible. |
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| Keywords: | multistage centrifugal pump 3-D flow field numerical simulation FLUENT |
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